Home / 16,856,289-23,261,740.50-9,121,331.40

Finding the Fourth Proportional to 16,856,289, 23,261,740.50 and 9,121,331.40

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Solution

The fourth proportional to 16,856,289, 23,261,740.50 and 9,121,331.40 is: 12,587,470.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,856,289 : 23,261,740.50 = 9,121,331.40 : x
  2. Step 2: Convert to fraction form
    16,856,289/23,261,740.50 = 9,121,331.40/x
  3. Step 3: Cross multiply
    16,856,289x = 23,261,740.50 × 9,121,331.40
  4. Step 4: Simplify right side
    16,856,289x = 212,178,044,041,301.72
  5. Step 5: Solve for x
    x = 212,178,044,041,301.72/16,856,289
  6. Step 6: Final answer
    x = 12,587,470.71

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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.