Home / 139,115,175.30-191,971,448.28-77,231,527.92

Finding the Fourth Proportional to 139,115,175.30, 191,971,448.28 and 77,231,527.92

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Solution

The fourth proportional to 139,115,175.30, 191,971,448.28 and 77,231,527.92 is: 106,575,348.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,115,175.30 : 191,971,448.28 = 77,231,527.92 : x
  2. Step 2: Convert to fraction form
    139,115,175.30/191,971,448.28 = 77,231,527.92/x
  3. Step 3: Cross multiply
    139,115,175.30x = 191,971,448.28 × 77,231,527.92
  4. Step 4: Simplify right side
    139,115,175.30x = 14,826,248,267,679,656
  5. Step 5: Solve for x
    x = 14,826,248,267,679,656/139,115,175.30
  6. Step 6: Final answer
    x = 106,575,348.35

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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.