Home / 331,745,934.58-497,617,125.51-86,102,389.78

Finding the Fourth Proportional to 331,745,934.58, 497,617,125.51 and 86,102,389.78

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Solution

The fourth proportional to 331,745,934.58, 497,617,125.51 and 86,102,389.78 is: 129,153,123.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,745,934.58 : 497,617,125.51 = 86,102,389.78 : x
  2. Step 2: Convert to fraction form
    331,745,934.58/497,617,125.51 = 86,102,389.78/x
  3. Step 3: Cross multiply
    331,745,934.58x = 497,617,125.51 × 86,102,389.78
  4. Step 4: Simplify right side
    331,745,934.58x = 42,846,023,701,865,200
  5. Step 5: Solve for x
    x = 42,846,023,701,865,200/331,745,934.58
  6. Step 6: Final answer
    x = 129,153,123.63

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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.