Home / 124,428,803.60-186,316,613.40-87,839,613.20

Finding the Fourth Proportional to 124,428,803.60, 186,316,613.40 and 87,839,613.20

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Solution

The fourth proportional to 124,428,803.60, 186,316,613.40 and 87,839,613.20 is: 131,528,864.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,428,803.60 : 186,316,613.40 = 87,839,613.20 : x
  2. Step 2: Convert to fraction form
    124,428,803.60/186,316,613.40 = 87,839,613.20/x
  3. Step 3: Cross multiply
    124,428,803.60x = 186,316,613.40 × 87,839,613.20
  4. Step 4: Simplify right side
    124,428,803.60x = 16,365,979,253,789,938
  5. Step 5: Solve for x
    x = 16,365,979,253,789,938/124,428,803.60
  6. Step 6: Final answer
    x = 131,528,864.54

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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.