Home / 91,004,029.20-136,506,043.80-39,985,693.20

Finding the Fourth Proportional to 91,004,029.20, 136,506,043.80 and 39,985,693.20

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Solution

The fourth proportional to 91,004,029.20, 136,506,043.80 and 39,985,693.20 is: 59,978,539.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,004,029.20 : 136,506,043.80 = 39,985,693.20 : x
  2. Step 2: Convert to fraction form
    91,004,029.20/136,506,043.80 = 39,985,693.20/x
  3. Step 3: Cross multiply
    91,004,029.20x = 136,506,043.80 × 39,985,693.20
  4. Step 4: Simplify right side
    91,004,029.20x = 5,458,288,787,332,563
  5. Step 5: Solve for x
    x = 5,458,288,787,332,563/91,004,029.20
  6. Step 6: Final answer
    x = 59,978,539.80

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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.