Home / 218,821,426.60-328,232,139.90-127,898,213.80

Finding the Fourth Proportional to 218,821,426.60, 328,232,139.90 and 127,898,213.80

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Solution

The fourth proportional to 218,821,426.60, 328,232,139.90 and 127,898,213.80 is: 191,847,320.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,821,426.60 : 328,232,139.90 = 127,898,213.80 : x
  2. Step 2: Convert to fraction form
    218,821,426.60/328,232,139.90 = 127,898,213.80/x
  3. Step 3: Cross multiply
    218,821,426.60x = 328,232,139.90 × 127,898,213.80
  4. Step 4: Simplify right side
    218,821,426.60x = 41,980,304,404,961,704
  5. Step 5: Solve for x
    x = 41,980,304,404,961,704/218,821,426.60
  6. Step 6: Final answer
    x = 191,847,320.70

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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.