Home / 520,886,581.24-781,483,356.58-209,834,132.80

Finding the Fourth Proportional to 520,886,581.24, 781,483,356.58 and 209,834,132.80

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Solution

The fourth proportional to 520,886,581.24, 781,483,356.58 and 209,834,132.80 is: 314,813,029.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,886,581.24 : 781,483,356.58 = 209,834,132.80 : x
  2. Step 2: Convert to fraction form
    520,886,581.24/781,483,356.58 = 209,834,132.80/x
  3. Step 3: Cross multiply
    520,886,581.24x = 781,483,356.58 × 209,834,132.80
  4. Step 4: Simplify right side
    520,886,581.24x = 163,981,882,424,548,320
  5. Step 5: Solve for x
    x = 163,981,882,424,548,320/520,886,581.24
  6. Step 6: Final answer
    x = 314,813,029.04

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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.