Home / 77,275,072.40-115,912,608.60-58,001,478.80

Finding the Fourth Proportional to 77,275,072.40, 115,912,608.60 and 58,001,478.80

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Solution

The fourth proportional to 77,275,072.40, 115,912,608.60 and 58,001,478.80 is: 87,002,218.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,275,072.40 : 115,912,608.60 = 58,001,478.80 : x
  2. Step 2: Convert to fraction form
    77,275,072.40/115,912,608.60 = 58,001,478.80/x
  3. Step 3: Cross multiply
    77,275,072.40x = 115,912,608.60 × 58,001,478.80
  4. Step 4: Simplify right side
    77,275,072.40x = 6,723,102,710,365,597
  5. Step 5: Solve for x
    x = 6,723,102,710,365,597/77,275,072.40
  6. Step 6: Final answer
    x = 87,002,218.20

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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.