Home / 279,936,271.40-419,904,407.10-272,377,999.40

Finding the Fourth Proportional to 279,936,271.40, 419,904,407.10 and 272,377,999.40

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Solution

The fourth proportional to 279,936,271.40, 419,904,407.10 and 272,377,999.40 is: 408,566,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,271.40 : 419,904,407.10 = 272,377,999.40 : x
  2. Step 2: Convert to fraction form
    279,936,271.40/419,904,407.10 = 272,377,999.40/x
  3. Step 3: Cross multiply
    279,936,271.40x = 419,904,407.10 × 272,377,999.40
  4. Step 4: Simplify right side
    279,936,271.40x = 114,372,722,345,141,152
  5. Step 5: Solve for x
    x = 114,372,722,345,141,152/279,936,271.40
  6. Step 6: Final answer
    x = 408,566,999.10

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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.