Home / 1,213,088,897.55-1,819,633,346.33-486,598,990.35

Finding the Fourth Proportional to 1,213,088,897.55, 1,819,633,346.33 and 486,598,990.35

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Solution

The fourth proportional to 1,213,088,897.55, 1,819,633,346.33 and 486,598,990.35 is: 729,898,485.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,088,897.55 : 1,819,633,346.33 = 486,598,990.35 : x
  2. Step 2: Convert to fraction form
    1,213,088,897.55/1,819,633,346.33 = 486,598,990.35/x
  3. Step 3: Cross multiply
    1,213,088,897.55x = 1,819,633,346.33 × 486,598,990.35
  4. Step 4: Simplify right side
    1,213,088,897.55x = 885,431,749,128,936,960
  5. Step 5: Solve for x
    x = 885,431,749,128,936,960/1,213,088,897.55
  6. Step 6: Final answer
    x = 729,898,485.53

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Half scale
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Double scale
Find fourth proportional to 1,213,088,898.55, 1,819,633,347.83 and 486,598,991.35
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.