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Finding the Fourth Proportional to 79,266,307.60, 118,899,461.40 and 25,419,062.80

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Solution

The fourth proportional to 79,266,307.60, 118,899,461.40 and 25,419,062.80 is: 38,128,594.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,266,307.60 : 118,899,461.40 = 25,419,062.80 : x
  2. Step 2: Convert to fraction form
    79,266,307.60/118,899,461.40 = 25,419,062.80/x
  3. Step 3: Cross multiply
    79,266,307.60x = 118,899,461.40 × 25,419,062.80
  4. Step 4: Simplify right side
    79,266,307.60x = 3,022,312,876,212,776
  5. Step 5: Solve for x
    x = 3,022,312,876,212,776/79,266,307.60
  6. Step 6: Final answer
    x = 38,128,594.20

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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.