Home / 90,346,203.12-124,677,322.20-51,187,902.96

Finding the Fourth Proportional to 90,346,203.12, 124,677,322.20 and 51,187,902.96

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Solution

The fourth proportional to 90,346,203.12, 124,677,322.20 and 51,187,902.96 is: 70,639,057.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,346,203.12 : 124,677,322.20 = 51,187,902.96 : x
  2. Step 2: Convert to fraction form
    90,346,203.12/124,677,322.20 = 51,187,902.96/x
  3. Step 3: Cross multiply
    90,346,203.12x = 124,677,322.20 × 51,187,902.96
  4. Step 4: Simplify right side
    90,346,203.12x = 6,381,970,670,086,254
  5. Step 5: Solve for x
    x = 6,381,970,670,086,254/90,346,203.12
  6. Step 6: Final answer
    x = 70,639,057.87

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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.