Home / 125,465,689.40-187,946,591.70-71,550,015.80

Finding the Fourth Proportional to 125,465,689.40, 187,946,591.70 and 71,550,015.80

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Solution

The fourth proportional to 125,465,689.40, 187,946,591.70 and 71,550,015.80 is: 107,181,347.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,465,689.40 : 187,946,591.70 = 71,550,015.80 : x
  2. Step 2: Convert to fraction form
    125,465,689.40/187,946,591.70 = 71,550,015.80/x
  3. Step 3: Cross multiply
    125,465,689.40x = 187,946,591.70 × 71,550,015.80
  4. Step 4: Simplify right side
    125,465,689.40x = 13,447,581,605,691,148
  5. Step 5: Solve for x
    x = 13,447,581,605,691,148/125,465,689.40
  6. Step 6: Final answer
    x = 107,181,347.11

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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.