Home / 1,213,088,853.80-1,819,633,280.70-486,598,946.60

Finding the Fourth Proportional to 1,213,088,853.80, 1,819,633,280.70 and 486,598,946.60

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Solution

The fourth proportional to 1,213,088,853.80, 1,819,633,280.70 and 486,598,946.60 is: 729,898,419.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,088,853.80 : 1,819,633,280.70 = 486,598,946.60 : x
  2. Step 2: Convert to fraction form
    1,213,088,853.80/1,819,633,280.70 = 486,598,946.60/x
  3. Step 3: Cross multiply
    1,213,088,853.80x = 1,819,633,280.70 × 486,598,946.60
  4. Step 4: Simplify right side
    1,213,088,853.80x = 885,431,637,586,922,240
  5. Step 5: Solve for x
    x = 885,431,637,586,922,240/1,213,088,853.80
  6. Step 6: Final answer
    x = 729,898,419.90

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Double scale
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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.