Home / 325,557,289.80-488,335,934.70-281,719,312.20

Finding the Fourth Proportional to 325,557,289.80, 488,335,934.70 and 281,719,312.20

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Solution

The fourth proportional to 325,557,289.80, 488,335,934.70 and 281,719,312.20 is: 422,578,968.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,557,289.80 : 488,335,934.70 = 281,719,312.20 : x
  2. Step 2: Convert to fraction form
    325,557,289.80/488,335,934.70 = 281,719,312.20/x
  3. Step 3: Cross multiply
    325,557,289.80x = 488,335,934.70 × 281,719,312.20
  4. Step 4: Simplify right side
    325,557,289.80x = 137,573,663,646,228,112
  5. Step 5: Solve for x
    x = 137,573,663,646,228,112/325,557,289.80
  6. Step 6: Final answer
    x = 422,578,968.30

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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.