Home / 285,466,958.40-428,200,437.60-91,384,705.20

Finding the Fourth Proportional to 285,466,958.40, 428,200,437.60 and 91,384,705.20

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Solution

The fourth proportional to 285,466,958.40, 428,200,437.60 and 91,384,705.20 is: 137,077,057.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,466,958.40 : 428,200,437.60 = 91,384,705.20 : x
  2. Step 2: Convert to fraction form
    285,466,958.40/428,200,437.60 = 91,384,705.20/x
  3. Step 3: Cross multiply
    285,466,958.40x = 428,200,437.60 × 91,384,705.20
  4. Step 4: Simplify right side
    285,466,958.40x = 39,130,970,756,587,000
  5. Step 5: Solve for x
    x = 39,130,970,756,587,000/285,466,958.40
  6. Step 6: Final answer
    x = 137,077,057.80

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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.