Home / 28,371,905.62-42,563,836.20-9,201,167.86

Finding the Fourth Proportional to 28,371,905.62, 42,563,836.20 and 9,201,167.86

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Solution

The fourth proportional to 28,371,905.62, 42,563,836.20 and 9,201,167.86 is: 13,803,690.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,371,905.62 : 42,563,836.20 = 9,201,167.86 : x
  2. Step 2: Convert to fraction form
    28,371,905.62/42,563,836.20 = 9,201,167.86/x
  3. Step 3: Cross multiply
    28,371,905.62x = 42,563,836.20 × 9,201,167.86
  4. Step 4: Simplify right side
    28,371,905.62x = 391,637,001,641,744.56
  5. Step 5: Solve for x
    x = 391,637,001,641,744.56/28,371,905.62
  6. Step 6: Final answer
    x = 13,803,690.41

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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.