Home / 28,870,253.46-39,840,948.90-15,818,006.88

Finding the Fourth Proportional to 28,870,253.46, 39,840,948.90 and 15,818,006.88

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Solution

The fourth proportional to 28,870,253.46, 39,840,948.90 and 15,818,006.88 is: 21,828,849.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870,253.46 : 39,840,948.90 = 15,818,006.88 : x
  2. Step 2: Convert to fraction form
    28,870,253.46/39,840,948.90 = 15,818,006.88/x
  3. Step 3: Cross multiply
    28,870,253.46x = 39,840,948.90 × 15,818,006.88
  4. Step 4: Simplify right side
    28,870,253.46x = 630,204,403,805,928.50
  5. Step 5: Solve for x
    x = 630,204,403,805,928.50/28,870,253.46
  6. Step 6: Final answer
    x = 21,828,849.02

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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.