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Finding the Fourth Proportional to 16,290,480.80, 24,393,730.80 and 12,931,248.80

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Solution

The fourth proportional to 16,290,480.80, 24,393,730.80 and 12,931,248.80 is: 19,363,541.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,290,480.80 : 24,393,730.80 = 12,931,248.80 : x
  2. Step 2: Convert to fraction form
    16,290,480.80/24,393,730.80 = 12,931,248.80/x
  3. Step 3: Cross multiply
    16,290,480.80x = 24,393,730.80 × 12,931,248.80
  4. Step 4: Simplify right side
    16,290,480.80x = 315,441,402,135,023.06
  5. Step 5: Solve for x
    x = 315,441,402,135,023.06/16,290,480.80
  6. Step 6: Final answer
    x = 19,363,541.57

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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.