Home / 15,421,892.02-21,284,555.78-9,842,545.82

Finding the Fourth Proportional to 15,421,892.02, 21,284,555.78 and 9,842,545.82

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Solution

The fourth proportional to 15,421,892.02, 21,284,555.78 and 9,842,545.82 is: 13,584,209.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,421,892.02 : 21,284,555.78 = 9,842,545.82 : x
  2. Step 2: Convert to fraction form
    15,421,892.02/21,284,555.78 = 9,842,545.82/x
  3. Step 3: Cross multiply
    15,421,892.02x = 21,284,555.78 × 9,842,545.82
  4. Step 4: Simplify right side
    15,421,892.02x = 209,494,215,522,995.84
  5. Step 5: Solve for x
    x = 209,494,215,522,995.84/15,421,892.02
  6. Step 6: Final answer
    x = 13,584,209.72

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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.