Home / 384,944,778.40-577,417,167.60-126,168,440.80

Finding the Fourth Proportional to 384,944,778.40, 577,417,167.60 and 126,168,440.80

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Solution

The fourth proportional to 384,944,778.40, 577,417,167.60 and 126,168,440.80 is: 189,252,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,944,778.40 : 577,417,167.60 = 126,168,440.80 : x
  2. Step 2: Convert to fraction form
    384,944,778.40/577,417,167.60 = 126,168,440.80/x
  3. Step 3: Cross multiply
    384,944,778.40x = 577,417,167.60 × 126,168,440.80
  4. Step 4: Simplify right side
    384,944,778.40x = 72,851,823,727,244,272
  5. Step 5: Solve for x
    x = 72,851,823,727,244,272/384,944,778.40
  6. Step 6: Final answer
    x = 189,252,661.20

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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.