Home / 112,896,590.40-169,344,885.60-66,912,436.80

Finding the Fourth Proportional to 112,896,590.40, 169,344,885.60 and 66,912,436.80

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Solution

The fourth proportional to 112,896,590.40, 169,344,885.60 and 66,912,436.80 is: 100,368,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,896,590.40 : 169,344,885.60 = 66,912,436.80 : x
  2. Step 2: Convert to fraction form
    112,896,590.40/169,344,885.60 = 66,912,436.80/x
  3. Step 3: Cross multiply
    112,896,590.40x = 169,344,885.60 × 66,912,436.80
  4. Step 4: Simplify right side
    112,896,590.40x = 11,331,278,955,113,230
  5. Step 5: Solve for x
    x = 11,331,278,955,113,230/112,896,590.40
  6. Step 6: Final answer
    x = 100,368,655.20

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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.