Home / 272,573,854.80-408,860,782.20-126,959,020.80

Finding the Fourth Proportional to 272,573,854.80, 408,860,782.20 and 126,959,020.80

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Solution

The fourth proportional to 272,573,854.80, 408,860,782.20 and 126,959,020.80 is: 190,438,531.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,573,854.80 : 408,860,782.20 = 126,959,020.80 : x
  2. Step 2: Convert to fraction form
    272,573,854.80/408,860,782.20 = 126,959,020.80/x
  3. Step 3: Cross multiply
    272,573,854.80x = 408,860,782.20 × 126,959,020.80
  4. Step 4: Simplify right side
    272,573,854.80x = 51,908,564,551,634,064
  5. Step 5: Solve for x
    x = 51,908,564,551,634,064/272,573,854.80
  6. Step 6: Final answer
    x = 190,438,531.20

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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.