Home / 91,882,608.80-137,823,913.20-40,769,794.40

Finding the Fourth Proportional to 91,882,608.80, 137,823,913.20 and 40,769,794.40

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Solution

The fourth proportional to 91,882,608.80, 137,823,913.20 and 40,769,794.40 is: 61,154,691.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,882,608.80 : 137,823,913.20 = 40,769,794.40 : x
  2. Step 2: Convert to fraction form
    91,882,608.80/137,823,913.20 = 40,769,794.40/x
  3. Step 3: Cross multiply
    91,882,608.80x = 137,823,913.20 × 40,769,794.40
  4. Step 4: Simplify right side
    91,882,608.80x = 5,619,052,604,567,445
  5. Step 5: Solve for x
    x = 5,619,052,604,567,445/91,882,608.80
  6. Step 6: Final answer
    x = 61,154,691.60

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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.