Home / 281,182,109.22-388,001,770.41-155,731,018.83

Finding the Fourth Proportional to 281,182,109.22, 388,001,770.41 and 155,731,018.83

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Solution

The fourth proportional to 281,182,109.22, 388,001,770.41 and 155,731,018.83 is: 214,892,445.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,182,109.22 : 388,001,770.41 = 155,731,018.83 : x
  2. Step 2: Convert to fraction form
    281,182,109.22/388,001,770.41 = 155,731,018.83/x
  3. Step 3: Cross multiply
    281,182,109.22x = 388,001,770.41 × 155,731,018.83
  4. Step 4: Simplify right side
    281,182,109.22x = 60,423,911,013,793,056
  5. Step 5: Solve for x
    x = 60,423,911,013,793,056/281,182,109.22
  6. Step 6: Final answer
    x = 214,892,445.26

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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.