Home / 272,327,142.80-408,242,708.40-99,762,345.20

Finding the Fourth Proportional to 272,327,142.80, 408,242,708.40 and 99,762,345.20

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Solution

The fourth proportional to 272,327,142.80, 408,242,708.40 and 99,762,345.20 is: 149,552,665.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,327,142.80 : 408,242,708.40 = 99,762,345.20 : x
  2. Step 2: Convert to fraction form
    272,327,142.80/408,242,708.40 = 99,762,345.20/x
  3. Step 3: Cross multiply
    272,327,142.80x = 408,242,708.40 × 99,762,345.20
  4. Step 4: Simplify right side
    272,327,142.80x = 40,727,250,000,783,736
  5. Step 5: Solve for x
    x = 40,727,250,000,783,736/272,327,142.80
  6. Step 6: Final answer
    x = 149,552,665.16

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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.