Home / 748,403,998.20-1,120,905,386.10-472,904,983.80

Finding the Fourth Proportional to 748,403,998.20, 1,120,905,386.10 and 472,904,983.80

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Solution

The fourth proportional to 748,403,998.20, 1,120,905,386.10 and 472,904,983.80 is: 708,282,885.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,403,998.20 : 1,120,905,386.10 = 472,904,983.80 : x
  2. Step 2: Convert to fraction form
    748,403,998.20/1,120,905,386.10 = 472,904,983.80/x
  3. Step 3: Cross multiply
    748,403,998.20x = 1,120,905,386.10 × 472,904,983.80
  4. Step 4: Simplify right side
    748,403,998.20x = 530,081,743,454,953,216
  5. Step 5: Solve for x
    x = 530,081,743,454,953,216/748,403,998.20
  6. Step 6: Final answer
    x = 708,282,885.62

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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.