Home / 83,376,177.60-125,064,266.40-78,699,496.80

Finding the Fourth Proportional to 83,376,177.60, 125,064,266.40 and 78,699,496.80

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Solution

The fourth proportional to 83,376,177.60, 125,064,266.40 and 78,699,496.80 is: 118,049,245.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,376,177.60 : 125,064,266.40 = 78,699,496.80 : x
  2. Step 2: Convert to fraction form
    83,376,177.60/125,064,266.40 = 78,699,496.80/x
  3. Step 3: Cross multiply
    83,376,177.60x = 125,064,266.40 × 78,699,496.80
  4. Step 4: Simplify right side
    83,376,177.60x = 9,842,494,833,341,148
  5. Step 5: Solve for x
    x = 9,842,494,833,341,148/83,376,177.60
  6. Step 6: Final answer
    x = 118,049,245.20

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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.