Home / 98,996,729.20-136,613,431.32-54,941,169.40

Finding the Fourth Proportional to 98,996,729.20, 136,613,431.32 and 54,941,169.40

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Solution

The fourth proportional to 98,996,729.20, 136,613,431.32 and 54,941,169.40 is: 75,817,673.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,996,729.20 : 136,613,431.32 = 54,941,169.40 : x
  2. Step 2: Convert to fraction form
    98,996,729.20/136,613,431.32 = 54,941,169.40/x
  3. Step 3: Cross multiply
    98,996,729.20x = 136,613,431.32 × 54,941,169.40
  4. Step 4: Simplify right side
    98,996,729.20x = 7,505,701,672,467,385
  5. Step 5: Solve for x
    x = 7,505,701,672,467,385/98,996,729.20
  6. Step 6: Final answer
    x = 75,817,673.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.