Home / 71,736,007.60-107,604,011.40-66,193,274.80

Finding the Fourth Proportional to 71,736,007.60, 107,604,011.40 and 66,193,274.80

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Solution

The fourth proportional to 71,736,007.60, 107,604,011.40 and 66,193,274.80 is: 99,289,912.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,736,007.60 : 107,604,011.40 = 66,193,274.80 : x
  2. Step 2: Convert to fraction form
    71,736,007.60/107,604,011.40 = 66,193,274.80/x
  3. Step 3: Cross multiply
    71,736,007.60x = 107,604,011.40 × 66,193,274.80
  4. Step 4: Simplify right side
    71,736,007.60x = 7,122,661,896,182,533
  5. Step 5: Solve for x
    x = 7,122,661,896,182,533/71,736,007.60
  6. Step 6: Final answer
    x = 99,289,912.20

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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.