Home / 985,608,002.20-1,478,412,003.30-501,878,594.20

Finding the Fourth Proportional to 985,608,002.20, 1,478,412,003.30 and 501,878,594.20

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Solution

The fourth proportional to 985,608,002.20, 1,478,412,003.30 and 501,878,594.20 is: 752,817,891.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,608,002.20 : 1,478,412,003.30 = 501,878,594.20 : x
  2. Step 2: Convert to fraction form
    985,608,002.20/1,478,412,003.30 = 501,878,594.20/x
  3. Step 3: Cross multiply
    985,608,002.20x = 1,478,412,003.30 × 501,878,594.20
  4. Step 4: Simplify right side
    985,608,002.20x = 741,983,337,864,609,664
  5. Step 5: Solve for x
    x = 741,983,337,864,609,664/985,608,002.20
  6. Step 6: Final answer
    x = 752,817,891.30

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Double scale
Find fourth proportional to 985,608,003.20, 1,478,412,004.80 and 501,878,595.20
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.