Home / 121,960,417.36-182,912,717.38-72,790,154.68

Finding the Fourth Proportional to 121,960,417.36, 182,912,717.38 and 72,790,154.68

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Solution

The fourth proportional to 121,960,417.36, 182,912,717.38 and 72,790,154.68 is: 109,168,575.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,960,417.36 : 182,912,717.38 = 72,790,154.68 : x
  2. Step 2: Convert to fraction form
    121,960,417.36/182,912,717.38 = 72,790,154.68/x
  3. Step 3: Cross multiply
    121,960,417.36x = 182,912,717.38 × 72,790,154.68
  4. Step 4: Simplify right side
    121,960,417.36x = 13,314,244,991,029,326
  5. Step 5: Solve for x
    x = 13,314,244,991,029,326/121,960,417.36
  6. Step 6: Final answer
    x = 109,168,575.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.