Home / 99,036,005.40-148,218,084.90-86,942,770.20

Finding the Fourth Proportional to 99,036,005.40, 148,218,084.90 and 86,942,770.20

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Solution

The fourth proportional to 99,036,005.40, 148,218,084.90 and 86,942,770.20 is: 130,119,251.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,036,005.40 : 148,218,084.90 = 86,942,770.20 : x
  2. Step 2: Convert to fraction form
    99,036,005.40/148,218,084.90 = 86,942,770.20/x
  3. Step 3: Cross multiply
    99,036,005.40x = 148,218,084.90 × 86,942,770.20
  4. Step 4: Simplify right side
    99,036,005.40x = 12,886,490,894,944,790
  5. Step 5: Solve for x
    x = 12,886,490,894,944,790/99,036,005.40
  6. Step 6: Final answer
    x = 130,119,251.51

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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.