Home / 121,813,882.22-168,104,451.40-66,059,411.42

Finding the Fourth Proportional to 121,813,882.22, 168,104,451.40 and 66,059,411.42

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Solution

The fourth proportional to 121,813,882.22, 168,104,451.40 and 66,059,411.42 is: 91,162,689.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,813,882.22 : 168,104,451.40 = 66,059,411.42 : x
  2. Step 2: Convert to fraction form
    121,813,882.22/168,104,451.40 = 66,059,411.42/x
  3. Step 3: Cross multiply
    121,813,882.22x = 168,104,451.40 × 66,059,411.42
  4. Step 4: Simplify right side
    121,813,882.22x = 11,104,881,116,565,996
  5. Step 5: Solve for x
    x = 11,104,881,116,565,996/121,813,882.22
  6. Step 6: Final answer
    x = 91,162,689.46

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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.