Home / 15,528,356.43-21,429,216.61-9,005,852.90

Finding the Fourth Proportional to 15,528,356.43, 21,429,216.61 and 9,005,852.90

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Solution

The fourth proportional to 15,528,356.43, 21,429,216.61 and 9,005,852.90 is: 12,428,126.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,528,356.43 : 21,429,216.61 = 9,005,852.90 : x
  2. Step 2: Convert to fraction form
    15,528,356.43/21,429,216.61 = 9,005,852.90/x
  3. Step 3: Cross multiply
    15,528,356.43x = 21,429,216.61 × 9,005,852.90
  4. Step 4: Simplify right side
    15,528,356.43x = 192,988,372,422,235.97
  5. Step 5: Solve for x
    x = 192,988,372,422,235.97/15,528,356.43
  6. Step 6: Final answer
    x = 12,428,126.14

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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.