Home / 207,455,416.30-310,970,548.05-121,149,397.90

Finding the Fourth Proportional to 207,455,416.30, 310,970,548.05 and 121,149,397.90

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Solution

The fourth proportional to 207,455,416.30, 310,970,548.05 and 121,149,397.90 is: 181,599,956.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,455,416.30 : 310,970,548.05 = 121,149,397.90 : x
  2. Step 2: Convert to fraction form
    207,455,416.30/310,970,548.05 = 121,149,397.90/x
  3. Step 3: Cross multiply
    207,455,416.30x = 310,970,548.05 × 121,149,397.90
  4. Step 4: Simplify right side
    207,455,416.30x = 37,673,894,660,890,520
  5. Step 5: Solve for x
    x = 37,673,894,660,890,520/207,455,416.30
  6. Step 6: Final answer
    x = 181,599,956.91

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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.