Home / 77,906,886.40-116,860,329.60-74,930,816.80

Finding the Fourth Proportional to 77,906,886.40, 116,860,329.60 and 74,930,816.80

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Solution

The fourth proportional to 77,906,886.40, 116,860,329.60 and 74,930,816.80 is: 112,396,225.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,906,886.40 : 116,860,329.60 = 74,930,816.80 : x
  2. Step 2: Convert to fraction form
    77,906,886.40/116,860,329.60 = 74,930,816.80/x
  3. Step 3: Cross multiply
    77,906,886.40x = 116,860,329.60 × 74,930,816.80
  4. Step 4: Simplify right side
    77,906,886.40x = 8,756,439,948,445,216
  5. Step 5: Solve for x
    x = 8,756,439,948,445,216/77,906,886.40
  6. Step 6: Final answer
    x = 112,396,225.20

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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.