Home / 145,516,921.60-218,275,382.40-125,959,892.80

Finding the Fourth Proportional to 145,516,921.60, 218,275,382.40 and 125,959,892.80

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Solution

The fourth proportional to 145,516,921.60, 218,275,382.40 and 125,959,892.80 is: 188,939,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,516,921.60 : 218,275,382.40 = 125,959,892.80 : x
  2. Step 2: Convert to fraction form
    145,516,921.60/218,275,382.40 = 125,959,892.80/x
  3. Step 3: Cross multiply
    145,516,921.60x = 218,275,382.40 × 125,959,892.80
  4. Step 4: Simplify right side
    145,516,921.60x = 27,493,943,767,983,008
  5. Step 5: Solve for x
    x = 27,493,943,767,983,008/145,516,921.60
  6. Step 6: Final answer
    x = 188,939,839.20

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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.