Home / 278,345,590.56-384,070,791.24-160,881,878.88

Finding the Fourth Proportional to 278,345,590.56, 384,070,791.24 and 160,881,878.88

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Solution

The fourth proportional to 278,345,590.56, 384,070,791.24 and 160,881,878.88 is: 221,990,333.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,345,590.56 : 384,070,791.24 = 160,881,878.88 : x
  2. Step 2: Convert to fraction form
    278,345,590.56/384,070,791.24 = 160,881,878.88/x
  3. Step 3: Cross multiply
    278,345,590.56x = 384,070,791.24 × 160,881,878.88
  4. Step 4: Simplify right side
    278,345,590.56x = 61,790,030,517,619,448
  5. Step 5: Solve for x
    x = 61,790,030,517,619,448/278,345,590.56
  6. Step 6: Final answer
    x = 221,990,333.65

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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.