Home / 555,365,948,550.40-766,343,730,374.82-311,445,221,727.78

Finding the Fourth Proportional to 555,365,948,550.40, 766,343,730,374.82 and 311,445,221,727.78

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Solution

The fourth proportional to 555,365,948,550.40, 766,343,730,374.82 and 311,445,221,727.78 is: 429,760,041,373.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,365,948,550.40 : 766,343,730,374.82 = 311,445,221,727.78 : x
  2. Step 2: Convert to fraction form
    555,365,948,550.40/766,343,730,374.82 = 311,445,221,727.78/x
  3. Step 3: Cross multiply
    555,365,948,550.40x = 766,343,730,374.82 × 311,445,221,727.78
  4. Step 4: Simplify right side
    555,365,948,550.40x = 238,674,093,026,279,862,304,768
  5. Step 5: Solve for x
    x = 238,674,093,026,279,862,304,768/555,365,948,550.40
  6. Step 6: Final answer
    x = 429,760,041,373.19

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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.