Home / 279,918,686.98-386,287,954.32-156,159,364.24

Finding the Fourth Proportional to 279,918,686.98, 386,287,954.32 and 156,159,364.24

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Solution

The fourth proportional to 279,918,686.98, 386,287,954.32 and 156,159,364.24 is: 215,500,015.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,918,686.98 : 386,287,954.32 = 156,159,364.24 : x
  2. Step 2: Convert to fraction form
    279,918,686.98/386,287,954.32 = 156,159,364.24/x
  3. Step 3: Cross multiply
    279,918,686.98x = 386,287,954.32 × 156,159,364.24
  4. Step 4: Simplify right side
    279,918,686.98x = 60,322,481,360,181,368
  5. Step 5: Solve for x
    x = 60,322,481,360,181,368/279,918,686.98
  6. Step 6: Final answer
    x = 215,500,015.42

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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.