Home / 28,342,023.30-42,518,564.55-12,167,943.30

Finding the Fourth Proportional to 28,342,023.30, 42,518,564.55 and 12,167,943.30

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Solution

The fourth proportional to 28,342,023.30, 42,518,564.55 and 12,167,943.30 is: 18,254,288.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,342,023.30 : 42,518,564.55 = 12,167,943.30 : x
  2. Step 2: Convert to fraction form
    28,342,023.30/42,518,564.55 = 12,167,943.30/x
  3. Step 3: Cross multiply
    28,342,023.30x = 42,518,564.55 × 12,167,943.30
  4. Step 4: Simplify right side
    28,342,023.30x = 517,363,482,641,790
  5. Step 5: Solve for x
    x = 517,363,482,641,790/28,342,023.30
  6. Step 6: Final answer
    x = 18,254,288.95

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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.