Home / 392,756,520.95-589,195,315.88-133,911,206.74

Finding the Fourth Proportional to 392,756,520.95, 589,195,315.88 and 133,911,206.74

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Solution

The fourth proportional to 392,756,520.95, 589,195,315.88 and 133,911,206.74 is: 200,887,449.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,756,520.95 : 589,195,315.88 = 133,911,206.74 : x
  2. Step 2: Convert to fraction form
    392,756,520.95/589,195,315.88 = 133,911,206.74/x
  3. Step 3: Cross multiply
    392,756,520.95x = 589,195,315.88 × 133,911,206.74
  4. Step 4: Simplify right side
    392,756,520.95x = 78,899,855,753,158,160
  5. Step 5: Solve for x
    x = 78,899,855,753,158,160/392,756,520.95
  6. Step 6: Final answer
    x = 200,887,449.46

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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.