Home / 286,170,665.20-429,397,715.40-163,443,223.60

Finding the Fourth Proportional to 286,170,665.20, 429,397,715.40 and 163,443,223.60

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Solution

The fourth proportional to 286,170,665.20, 429,397,715.40 and 163,443,223.60 is: 245,245,775.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,170,665.20 : 429,397,715.40 = 163,443,223.60 : x
  2. Step 2: Convert to fraction form
    286,170,665.20/429,397,715.40 = 163,443,223.60/x
  3. Step 3: Cross multiply
    286,170,665.20x = 429,397,715.40 × 163,443,223.60
  4. Step 4: Simplify right side
    286,170,665.20x = 70,182,146,811,451,360
  5. Step 5: Solve for x
    x = 70,182,146,811,451,360/286,170,665.20
  6. Step 6: Final answer
    x = 245,245,775.85

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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.