Home / 392,525,928.40-588,788,892.60-389,838,542.80

Finding the Fourth Proportional to 392,525,928.40, 588,788,892.60 and 389,838,542.80

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Solution

The fourth proportional to 392,525,928.40, 588,788,892.60 and 389,838,542.80 is: 584,757,814.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,525,928.40 : 588,788,892.60 = 389,838,542.80 : x
  2. Step 2: Convert to fraction form
    392,525,928.40/588,788,892.60 = 389,838,542.80/x
  3. Step 3: Cross multiply
    392,525,928.40x = 588,788,892.60 × 389,838,542.80
  4. Step 4: Simplify right side
    392,525,928.40x = 229,532,603,908,009,728
  5. Step 5: Solve for x
    x = 229,532,603,908,009,728/392,525,928.40
  6. Step 6: Final answer
    x = 584,757,814.20

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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.