Home / 391,999,798.10-588,088,281.78-129,683,733.77

Finding the Fourth Proportional to 391,999,798.10, 588,088,281.78 and 129,683,733.77

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Solution

The fourth proportional to 391,999,798.10, 588,088,281.78 and 129,683,733.77 is: 194,554,906.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,999,798.10 : 588,088,281.78 = 129,683,733.77 : x
  2. Step 2: Convert to fraction form
    391,999,798.10/588,088,281.78 = 129,683,733.77/x
  3. Step 3: Cross multiply
    391,999,798.10x = 588,088,281.78 × 129,683,733.77
  4. Step 4: Simplify right side
    391,999,798.10x = 76,265,484,167,614,256
  5. Step 5: Solve for x
    x = 76,265,484,167,614,256/391,999,798.10
  6. Step 6: Final answer
    x = 194,554,906.76

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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.