Home / 28,488,954.61-39,309,580.83-15,930,235.90

Finding the Fourth Proportional to 28,488,954.61, 39,309,580.83 and 15,930,235.90

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Solution

The fourth proportional to 28,488,954.61, 39,309,580.83 and 15,930,235.90 is: 21,980,830.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,488,954.61 : 39,309,580.83 = 15,930,235.90 : x
  2. Step 2: Convert to fraction form
    28,488,954.61/39,309,580.83 = 15,930,235.90/x
  3. Step 3: Cross multiply
    28,488,954.61x = 39,309,580.83 × 15,930,235.90
  4. Step 4: Simplify right side
    28,488,954.61x = 626,210,895,752,017.75
  5. Step 5: Solve for x
    x = 626,210,895,752,017.75/28,488,954.61
  6. Step 6: Final answer
    x = 21,980,830.97

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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.