Home / 403,488,010.20-605,232,015.30-199,414,666.20

Finding the Fourth Proportional to 403,488,010.20, 605,232,015.30 and 199,414,666.20

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Solution

The fourth proportional to 403,488,010.20, 605,232,015.30 and 199,414,666.20 is: 299,121,999.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,488,010.20 : 605,232,015.30 = 199,414,666.20 : x
  2. Step 2: Convert to fraction form
    403,488,010.20/605,232,015.30 = 199,414,666.20/x
  3. Step 3: Cross multiply
    403,488,010.20x = 605,232,015.30 × 199,414,666.20
  4. Step 4: Simplify right side
    403,488,010.20x = 120,692,140,304,602,784
  5. Step 5: Solve for x
    x = 120,692,140,304,602,784/403,488,010.20
  6. Step 6: Final answer
    x = 299,121,999.30

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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.