Home / 251,627,276.80-377,440,915.20-81,426,188.80

Finding the Fourth Proportional to 251,627,276.80, 377,440,915.20 and 81,426,188.80

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Solution

The fourth proportional to 251,627,276.80, 377,440,915.20 and 81,426,188.80 is: 122,139,283.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,627,276.80 : 377,440,915.20 = 81,426,188.80 : x
  2. Step 2: Convert to fraction form
    251,627,276.80/377,440,915.20 = 81,426,188.80/x
  3. Step 3: Cross multiply
    251,627,276.80x = 377,440,915.20 × 81,426,188.80
  4. Step 4: Simplify right side
    251,627,276.80x = 30,733,575,221,919,988
  5. Step 5: Solve for x
    x = 30,733,575,221,919,988/251,627,276.80
  6. Step 6: Final answer
    x = 122,139,283.20

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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.