Home / 278,909,536.10-418,380,050.55-84,827,282.90

Finding the Fourth Proportional to 278,909,536.10, 418,380,050.55 and 84,827,282.90

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Solution

The fourth proportional to 278,909,536.10, 418,380,050.55 and 84,827,282.90 is: 127,245,713.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,909,536.10 : 418,380,050.55 = 84,827,282.90 : x
  2. Step 2: Convert to fraction form
    278,909,536.10/418,380,050.55 = 84,827,282.90/x
  3. Step 3: Cross multiply
    278,909,536.10x = 418,380,050.55 × 84,827,282.90
  4. Step 4: Simplify right side
    278,909,536.10x = 35,490,042,907,721,156
  5. Step 5: Solve for x
    x = 35,490,042,907,721,156/278,909,536.10
  6. Step 6: Final answer
    x = 127,245,713.45

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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.