Home / 127,854,808.40-176,428,966.92-72,097,104.08

Finding the Fourth Proportional to 127,854,808.40, 176,428,966.92 and 72,097,104.08

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Solution

The fourth proportional to 127,854,808.40, 176,428,966.92 and 72,097,104.08 is: 99,487,987.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,854,808.40 : 176,428,966.92 = 72,097,104.08 : x
  2. Step 2: Convert to fraction form
    127,854,808.40/176,428,966.92 = 72,097,104.08/x
  3. Step 3: Cross multiply
    127,854,808.40x = 176,428,966.92 × 72,097,104.08
  4. Step 4: Simplify right side
    127,854,808.40x = 12,720,017,590,758,116
  5. Step 5: Solve for x
    x = 12,720,017,590,758,116/127,854,808.40
  6. Step 6: Final answer
    x = 99,487,987.58

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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.