Home / 125,712,067.20-188,428,132.80-49,009,603.20

Finding the Fourth Proportional to 125,712,067.20, 188,428,132.80 and 49,009,603.20

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Solution

The fourth proportional to 125,712,067.20, 188,428,132.80 and 49,009,603.20 is: 73,459,837.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,712,067.20 : 188,428,132.80 = 49,009,603.20 : x
  2. Step 2: Convert to fraction form
    125,712,067.20/188,428,132.80 = 49,009,603.20/x
  3. Step 3: Cross multiply
    125,712,067.20x = 188,428,132.80 × 49,009,603.20
  4. Step 4: Simplify right side
    125,712,067.20x = 9,234,788,020,244,906
  5. Step 5: Solve for x
    x = 9,234,788,020,244,906/125,712,067.20
  6. Step 6: Final answer
    x = 73,459,837.44

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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.