Home / 128,598,426.40-192,897,639.60-37,731,200.80

Finding the Fourth Proportional to 128,598,426.40, 192,897,639.60 and 37,731,200.80

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Solution

The fourth proportional to 128,598,426.40, 192,897,639.60 and 37,731,200.80 is: 56,596,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,598,426.40 : 192,897,639.60 = 37,731,200.80 : x
  2. Step 2: Convert to fraction form
    128,598,426.40/192,897,639.60 = 37,731,200.80/x
  3. Step 3: Cross multiply
    128,598,426.40x = 192,897,639.60 × 37,731,200.80
  4. Step 4: Simplify right side
    128,598,426.40x = 7,278,259,573,593,631
  5. Step 5: Solve for x
    x = 7,278,259,573,593,631/128,598,426.40
  6. Step 6: Final answer
    x = 56,596,801.20

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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.