Home / 99,541,538.46-137,335,851.27-78,567,333.66

Finding the Fourth Proportional to 99,541,538.46, 137,335,851.27 and 78,567,333.66

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Solution

The fourth proportional to 99,541,538.46, 137,335,851.27 and 78,567,333.66 is: 108,398,080.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,541,538.46 : 137,335,851.27 = 78,567,333.66 : x
  2. Step 2: Convert to fraction form
    99,541,538.46/137,335,851.27 = 78,567,333.66/x
  3. Step 3: Cross multiply
    99,541,538.46x = 137,335,851.27 × 78,567,333.66
  4. Step 4: Simplify right side
    99,541,538.46x = 10,790,111,650,210,226
  5. Step 5: Solve for x
    x = 10,790,111,650,210,226/99,541,538.46
  6. Step 6: Final answer
    x = 108,398,080.01

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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.