Home / 28,157,026.60-42,235,539.90-9,981,744.40

Finding the Fourth Proportional to 28,157,026.60, 42,235,539.90 and 9,981,744.40

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Solution

The fourth proportional to 28,157,026.60, 42,235,539.90 and 9,981,744.40 is: 14,972,616.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,157,026.60 : 42,235,539.90 = 9,981,744.40 : x
  2. Step 2: Convert to fraction form
    28,157,026.60/42,235,539.90 = 9,981,744.40/x
  3. Step 3: Cross multiply
    28,157,026.60x = 42,235,539.90 × 9,981,744.40
  4. Step 4: Simplify right side
    28,157,026.60x = 421,584,363,877,801.56
  5. Step 5: Solve for x
    x = 421,584,363,877,801.56/28,157,026.60
  6. Step 6: Final answer
    x = 14,972,616.60

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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.