Home / 392,236,491.12-587,946,030.12-219,459,991.92

Finding the Fourth Proportional to 392,236,491.12, 587,946,030.12 and 219,459,991.92

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Solution

The fourth proportional to 392,236,491.12, 587,946,030.12 and 219,459,991.92 is: 328,961,312.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,236,491.12 : 587,946,030.12 = 219,459,991.92 : x
  2. Step 2: Convert to fraction form
    392,236,491.12/587,946,030.12 = 219,459,991.92/x
  3. Step 3: Cross multiply
    392,236,491.12x = 587,946,030.12 × 219,459,991.92
  4. Step 4: Simplify right side
    392,236,491.12x = 129,030,631,019,531,264
  5. Step 5: Solve for x
    x = 129,030,631,019,531,264/392,236,491.12
  6. Step 6: Final answer
    x = 328,961,312.73

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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.