Home / 98,713,670.29-136,366,761.77-78,841,343.72

Finding the Fourth Proportional to 98,713,670.29, 136,366,761.77 and 78,841,343.72

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Solution

The fourth proportional to 98,713,670.29, 136,366,761.77 and 78,841,343.72 is: 108,914,385.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,713,670.29 : 136,366,761.77 = 78,841,343.72 : x
  2. Step 2: Convert to fraction form
    98,713,670.29/136,366,761.77 = 78,841,343.72/x
  3. Step 3: Cross multiply
    98,713,670.29x = 136,366,761.77 × 78,841,343.72
  4. Step 4: Simplify right side
    98,713,670.29x = 10,751,338,736,934,292
  5. Step 5: Solve for x
    x = 10,751,338,736,934,292/98,713,670.29
  6. Step 6: Final answer
    x = 108,914,385.47

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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.