Home / 392,526,014.40-588,789,021.60-389,838,628.80

Finding the Fourth Proportional to 392,526,014.40, 588,789,021.60 and 389,838,628.80

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Solution

The fourth proportional to 392,526,014.40, 588,789,021.60 and 389,838,628.80 is: 584,757,943.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,526,014.40 : 588,789,021.60 = 389,838,628.80 : x
  2. Step 2: Convert to fraction form
    392,526,014.40/588,789,021.60 = 389,838,628.80/x
  3. Step 3: Cross multiply
    392,526,014.40x = 588,789,021.60 × 389,838,628.80
  4. Step 4: Simplify right side
    392,526,014.40x = 229,532,704,833,037,600
  5. Step 5: Solve for x
    x = 229,532,704,833,037,600/392,526,014.40
  6. Step 6: Final answer
    x = 584,757,943.20

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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.