Home / 98,713,671.79-136,366,763.84-78,841,345.22

Finding the Fourth Proportional to 98,713,671.79, 136,366,763.84 and 78,841,345.22

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Solution

The fourth proportional to 98,713,671.79, 136,366,763.84 and 78,841,345.22 is: 108,914,387.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,713,671.79 : 136,366,763.84 = 78,841,345.22 : x
  2. Step 2: Convert to fraction form
    98,713,671.79/136,366,763.84 = 78,841,345.22/x
  3. Step 3: Cross multiply
    98,713,671.79x = 136,366,763.84 × 78,841,345.22
  4. Step 4: Simplify right side
    98,713,671.79x = 10,751,339,104,443,652
  5. Step 5: Solve for x
    x = 10,751,339,104,443,652/98,713,671.79
  6. Step 6: Final answer
    x = 108,914,387.54

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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.