Home / 79,332,291.60-118,998,437.40-55,145,821.20

Finding the Fourth Proportional to 79,332,291.60, 118,998,437.40 and 55,145,821.20

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Solution

The fourth proportional to 79,332,291.60, 118,998,437.40 and 55,145,821.20 is: 82,718,731.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,332,291.60 : 118,998,437.40 = 55,145,821.20 : x
  2. Step 2: Convert to fraction form
    79,332,291.60/118,998,437.40 = 55,145,821.20/x
  3. Step 3: Cross multiply
    79,332,291.60x = 118,998,437.40 × 55,145,821.20
  4. Step 4: Simplify right side
    79,332,291.60x = 6,562,266,551,939,794
  5. Step 5: Solve for x
    x = 6,562,266,551,939,794/79,332,291.60
  6. Step 6: Final answer
    x = 82,718,731.80

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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.