Home / 21,513,789.55-29,688,275.50-11,724,033.97

Finding the Fourth Proportional to 21,513,789.55, 29,688,275.50 and 11,724,033.97

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Solution

The fourth proportional to 21,513,789.55, 29,688,275.50 and 11,724,033.97 is: 16,178,755.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,513,789.55 : 29,688,275.50 = 11,724,033.97 : x
  2. Step 2: Convert to fraction form
    21,513,789.55/29,688,275.50 = 11,724,033.97/x
  3. Step 3: Cross multiply
    21,513,789.55x = 29,688,275.50 × 11,724,033.97
  4. Step 4: Simplify right side
    21,513,789.55x = 348,066,350,480,518.94
  5. Step 5: Solve for x
    x = 348,066,350,480,518.94/21,513,789.55
  6. Step 6: Final answer
    x = 16,178,755.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.