Home / 555,365,948,552.40-766,343,730,377.56-311,445,221,729.78

Finding the Fourth Proportional to 555,365,948,552.40, 766,343,730,377.56 and 311,445,221,729.78

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Solution

The fourth proportional to 555,365,948,552.40, 766,343,730,377.56 and 311,445,221,729.78 is: 429,760,041,375.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,365,948,552.40 : 766,343,730,377.56 = 311,445,221,729.78 : x
  2. Step 2: Convert to fraction form
    555,365,948,552.40/766,343,730,377.56 = 311,445,221,729.78/x
  3. Step 3: Cross multiply
    555,365,948,552.40x = 766,343,730,377.56 × 311,445,221,729.78
  4. Step 4: Simplify right side
    555,365,948,552.40x = 238,674,093,028,665,951,518,720
  5. Step 5: Solve for x
    x = 238,674,093,028,665,951,518,720/555,365,948,552.40
  6. Step 6: Final answer
    x = 429,760,041,375.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.