Home / 28,815,476.80-39,766,306.46-15,762,437.01

Finding the Fourth Proportional to 28,815,476.80, 39,766,306.46 and 15,762,437.01

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Solution

The fourth proportional to 28,815,476.80, 39,766,306.46 and 15,762,437.01 is: 21,752,681.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,815,476.80 : 39,766,306.46 = 15,762,437.01 : x
  2. Step 2: Convert to fraction form
    28,815,476.80/39,766,306.46 = 15,762,437.01/x
  3. Step 3: Cross multiply
    28,815,476.80x = 39,766,306.46 × 15,762,437.01
  4. Step 4: Simplify right side
    28,815,476.80x = 626,813,900,696,106.12
  5. Step 5: Solve for x
    x = 626,813,900,696,106.12/28,815,476.80
  6. Step 6: Final answer
    x = 21,752,681.90

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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.