Home / 519,499,984.71-716,981,302.92-318,521,306.56

Finding the Fourth Proportional to 519,499,984.71, 716,981,302.92 and 318,521,306.56

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Solution

The fourth proportional to 519,499,984.71, 716,981,302.92 and 318,521,306.56 is: 439,603,133.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,499,984.71 : 716,981,302.92 = 318,521,306.56 : x
  2. Step 2: Convert to fraction form
    519,499,984.71/716,981,302.92 = 318,521,306.56/x
  3. Step 3: Cross multiply
    519,499,984.71x = 716,981,302.92 × 318,521,306.56
  4. Step 4: Simplify right side
    519,499,984.71x = 228,373,821,385,919,488
  5. Step 5: Solve for x
    x = 228,373,821,385,919,488/519,499,984.71
  6. Step 6: Final answer
    x = 439,603,133.99

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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.