Home / 28,746,123.94-39,670,252.78-15,693,932.98

Finding the Fourth Proportional to 28,746,123.94, 39,670,252.78 and 15,693,932.98

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Solution

The fourth proportional to 28,746,123.94, 39,670,252.78 and 15,693,932.98 is: 21,657,956.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,746,123.94 : 39,670,252.78 = 15,693,932.98 : x
  2. Step 2: Convert to fraction form
    28,746,123.94/39,670,252.78 = 15,693,932.98/x
  3. Step 3: Cross multiply
    28,746,123.94x = 39,670,252.78 × 15,693,932.98
  4. Step 4: Simplify right side
    28,746,123.94x = 622,582,288,428,978.75
  5. Step 5: Solve for x
    x = 622,582,288,428,978.75/28,746,123.94
  6. Step 6: Final answer
    x = 21,657,956.03

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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.