Home / 131,220,123.60-196,830,185.40-40,331,902.80

Finding the Fourth Proportional to 131,220,123.60, 196,830,185.40 and 40,331,902.80

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Solution

The fourth proportional to 131,220,123.60, 196,830,185.40 and 40,331,902.80 is: 60,497,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,220,123.60 : 196,830,185.40 = 40,331,902.80 : x
  2. Step 2: Convert to fraction form
    131,220,123.60/196,830,185.40 = 40,331,902.80/x
  3. Step 3: Cross multiply
    131,220,123.60x = 196,830,185.40 × 40,331,902.80
  4. Step 4: Simplify right side
    131,220,123.60x = 7,938,535,905,658,779
  5. Step 5: Solve for x
    x = 7,938,535,905,658,779/131,220,123.60
  6. Step 6: Final answer
    x = 60,497,854.20

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Similar ratio
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1.5x scale

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.