Home / 76,913,017.20-115,369,525.80-74,225,631.60

Finding the Fourth Proportional to 76,913,017.20, 115,369,525.80 and 74,225,631.60

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Solution

The fourth proportional to 76,913,017.20, 115,369,525.80 and 74,225,631.60 is: 111,338,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,913,017.20 : 115,369,525.80 = 74,225,631.60 : x
  2. Step 2: Convert to fraction form
    76,913,017.20/115,369,525.80 = 74,225,631.60/x
  3. Step 3: Cross multiply
    76,913,017.20x = 115,369,525.80 × 74,225,631.60
  4. Step 4: Simplify right side
    76,913,017.20x = 8,563,375,919,897,494
  5. Step 5: Solve for x
    x = 8,563,375,919,897,494/76,913,017.20
  6. Step 6: Final answer
    x = 111,338,447.40

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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.