Home / 720,981,704.70-1,081,472,557.05-478,644,608.70

Finding the Fourth Proportional to 720,981,704.70, 1,081,472,557.05 and 478,644,608.70

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Solution

The fourth proportional to 720,981,704.70, 1,081,472,557.05 and 478,644,608.70 is: 717,966,913.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,981,704.70 : 1,081,472,557.05 = 478,644,608.70 : x
  2. Step 2: Convert to fraction form
    720,981,704.70/1,081,472,557.05 = 478,644,608.70/x
  3. Step 3: Cross multiply
    720,981,704.70x = 1,081,472,557.05 × 478,644,608.70
  4. Step 4: Simplify right side
    720,981,704.70x = 517,641,008,888,985,664
  5. Step 5: Solve for x
    x = 517,641,008,888,985,664/720,981,704.70
  6. Step 6: Final answer
    x = 717,966,913.05

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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.