Home / 870,913,265.70-1,306,369,898.55-386,239,073.70

Finding the Fourth Proportional to 870,913,265.70, 1,306,369,898.55 and 386,239,073.70

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Solution

The fourth proportional to 870,913,265.70, 1,306,369,898.55 and 386,239,073.70 is: 579,358,610.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,913,265.70 : 1,306,369,898.55 = 386,239,073.70 : x
  2. Step 2: Convert to fraction form
    870,913,265.70/1,306,369,898.55 = 386,239,073.70/x
  3. Step 3: Cross multiply
    870,913,265.70x = 1,306,369,898.55 × 386,239,073.70
  4. Step 4: Simplify right side
    870,913,265.70x = 504,571,099,525,514,944
  5. Step 5: Solve for x
    x = 504,571,099,525,514,944/870,913,265.70
  6. Step 6: Final answer
    x = 579,358,610.55

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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.