Home / 28,341,890.28-42,519,581.98-9,172,647.36

Finding the Fourth Proportional to 28,341,890.28, 42,519,581.98 and 9,172,647.36

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Solution

The fourth proportional to 28,341,890.28, 42,519,581.98 and 9,172,647.36 is: 13,761,154.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,341,890.28 : 42,519,581.98 = 9,172,647.36 : x
  2. Step 2: Convert to fraction form
    28,341,890.28/42,519,581.98 = 9,172,647.36/x
  3. Step 3: Cross multiply
    28,341,890.28x = 42,519,581.98 × 9,172,647.36
  4. Step 4: Simplify right side
    28,341,890.28x = 390,017,131,374,218.94
  5. Step 5: Solve for x
    x = 390,017,131,374,218.94/28,341,890.28
  6. Step 6: Final answer
    x = 13,761,154.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.