Home / 76,979,549.60-115,486,557.98-25,860,174.20

Finding the Fourth Proportional to 76,979,549.60, 115,486,557.98 and 25,860,174.20

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Solution

The fourth proportional to 76,979,549.60, 115,486,557.98 and 25,860,174.20 is: 38,796,050.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,979,549.60 : 115,486,557.98 = 25,860,174.20 : x
  2. Step 2: Convert to fraction form
    76,979,549.60/115,486,557.98 = 25,860,174.20/x
  3. Step 3: Cross multiply
    76,979,549.60x = 115,486,557.98 × 25,860,174.20
  4. Step 4: Simplify right side
    76,979,549.60x = 2,986,502,506,414,466.50
  5. Step 5: Solve for x
    x = 2,986,502,506,414,466.50/76,979,549.60
  6. Step 6: Final answer
    x = 38,796,050.67

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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.