Home / 125,465,018.40-188,203,057.20-70,876,807.20

Finding the Fourth Proportional to 125,465,018.40, 188,203,057.20 and 70,876,807.20

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Solution

The fourth proportional to 125,465,018.40, 188,203,057.20 and 70,876,807.20 is: 106,318,334.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,465,018.40 : 188,203,057.20 = 70,876,807.20 : x
  2. Step 2: Convert to fraction form
    125,465,018.40/188,203,057.20 = 70,876,807.20/x
  3. Step 3: Cross multiply
    125,465,018.40x = 188,203,057.20 × 70,876,807.20
  4. Step 4: Simplify right side
    125,465,018.40x = 13,339,231,799,614,972
  5. Step 5: Solve for x
    x = 13,339,231,799,614,972/125,465,018.40
  6. Step 6: Final answer
    x = 106,318,334.54

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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.