Home / 268,035,478.60-402,053,217.90-86,282,656.60

Finding the Fourth Proportional to 268,035,478.60, 402,053,217.90 and 86,282,656.60

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Solution

The fourth proportional to 268,035,478.60, 402,053,217.90 and 86,282,656.60 is: 129,423,984.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,035,478.60 : 402,053,217.90 = 86,282,656.60 : x
  2. Step 2: Convert to fraction form
    268,035,478.60/402,053,217.90 = 86,282,656.60/x
  3. Step 3: Cross multiply
    268,035,478.60x = 402,053,217.90 × 86,282,656.60
  4. Step 4: Simplify right side
    268,035,478.60x = 34,690,219,734,990,668
  5. Step 5: Solve for x
    x = 34,690,219,734,990,668/268,035,478.60
  6. Step 6: Final answer
    x = 129,423,984.90

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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.