Home / 420,046,989.60-630,066,337.20-132,832,653.60

Finding the Fourth Proportional to 420,046,989.60, 630,066,337.20 and 132,832,653.60

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Solution

The fourth proportional to 420,046,989.60, 630,066,337.20 and 132,832,653.60 is: 199,247,668.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,046,989.60 : 630,066,337.20 = 132,832,653.60 : x
  2. Step 2: Convert to fraction form
    420,046,989.60/630,066,337.20 = 132,832,653.60/x
  3. Step 3: Cross multiply
    420,046,989.60x = 630,066,337.20 × 132,832,653.60
  4. Step 4: Simplify right side
    420,046,989.60x = 83,693,383,514,308,400
  5. Step 5: Solve for x
    x = 83,693,383,514,308,400/420,046,989.60
  6. Step 6: Final answer
    x = 199,247,668.92

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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.