Home / 76,912,084.20-115,368,126.30-74,224,698.60

Finding the Fourth Proportional to 76,912,084.20, 115,368,126.30 and 74,224,698.60

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Solution

The fourth proportional to 76,912,084.20, 115,368,126.30 and 74,224,698.60 is: 111,337,047.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,912,084.20 : 115,368,126.30 = 74,224,698.60 : x
  2. Step 2: Convert to fraction form
    76,912,084.20/115,368,126.30 = 74,224,698.60/x
  3. Step 3: Cross multiply
    76,912,084.20x = 115,368,126.30 × 74,224,698.60
  4. Step 4: Simplify right side
    76,912,084.20x = 8,563,164,402,664,232
  5. Step 5: Solve for x
    x = 8,563,164,402,664,232/76,912,084.20
  6. Step 6: Final answer
    x = 111,337,047.90

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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.