Home / 408,098,431.20-612,147,646.80-224,432,421.60

Finding the Fourth Proportional to 408,098,431.20, 612,147,646.80 and 224,432,421.60

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Solution

The fourth proportional to 408,098,431.20, 612,147,646.80 and 224,432,421.60 is: 336,648,632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,098,431.20 : 612,147,646.80 = 224,432,421.60 : x
  2. Step 2: Convert to fraction form
    408,098,431.20/612,147,646.80 = 224,432,421.60/x
  3. Step 3: Cross multiply
    408,098,431.20x = 612,147,646.80 × 224,432,421.60
  4. Step 4: Simplify right side
    408,098,431.20x = 137,385,778,748,065,472
  5. Step 5: Solve for x
    x = 137,385,778,748,065,472/408,098,431.20
  6. Step 6: Final answer
    x = 336,648,632.40

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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.