Home / 28,029,470.20-38,673,348.64-16,420,793.20

Finding the Fourth Proportional to 28,029,470.20, 38,673,348.64 and 16,420,793.20

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Solution

The fourth proportional to 28,029,470.20, 38,673,348.64 and 16,420,793.20 is: 22,656,406.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,029,470.20 : 38,673,348.64 = 16,420,793.20 : x
  2. Step 2: Convert to fraction form
    28,029,470.20/38,673,348.64 = 16,420,793.20/x
  3. Step 3: Cross multiply
    28,029,470.20x = 38,673,348.64 × 16,420,793.20
  4. Step 4: Simplify right side
    28,029,470.20x = 635,047,060,368,941.25
  5. Step 5: Solve for x
    x = 635,047,060,368,941.25/28,029,470.20
  6. Step 6: Final answer
    x = 22,656,406.13

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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.