Home / 87,908,123.10-131,771,205.45-39,409,211.10

Finding the Fourth Proportional to 87,908,123.10, 131,771,205.45 and 39,409,211.10

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Solution

The fourth proportional to 87,908,123.10, 131,771,205.45 and 39,409,211.10 is: 59,073,030.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,908,123.10 : 131,771,205.45 = 39,409,211.10 : x
  2. Step 2: Convert to fraction form
    87,908,123.10/131,771,205.45 = 39,409,211.10/x
  3. Step 3: Cross multiply
    87,908,123.10x = 131,771,205.45 × 39,409,211.10
  4. Step 4: Simplify right side
    87,908,123.10x = 5,192,999,252,480,521
  5. Step 5: Solve for x
    x = 5,192,999,252,480,521/87,908,123.10
  6. Step 6: Final answer
    x = 59,073,030.68

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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.