Home / 140,042,142.34-193,258,423.92-77,318,361.70

Finding the Fourth Proportional to 140,042,142.34, 193,258,423.92 and 77,318,361.70

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Solution

The fourth proportional to 140,042,142.34, 193,258,423.92 and 77,318,361.70 is: 106,699,486.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,042,142.34 : 193,258,423.92 = 77,318,361.70 : x
  2. Step 2: Convert to fraction form
    140,042,142.34/193,258,423.92 = 77,318,361.70/x
  3. Step 3: Cross multiply
    140,042,142.34x = 193,258,423.92 × 77,318,361.70
  4. Step 4: Simplify right side
    140,042,142.34x = 14,942,424,722,218,492
  5. Step 5: Solve for x
    x = 14,942,424,722,218,492/140,042,142.34
  6. Step 6: Final answer
    x = 106,699,486.83

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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.