Home / 399,918,335.20-599,877,502.80-112,703,999.20

Finding the Fourth Proportional to 399,918,335.20, 599,877,502.80 and 112,703,999.20

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Solution

The fourth proportional to 399,918,335.20, 599,877,502.80 and 112,703,999.20 is: 169,055,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,918,335.20 : 599,877,502.80 = 112,703,999.20 : x
  2. Step 2: Convert to fraction form
    399,918,335.20/599,877,502.80 = 112,703,999.20/x
  3. Step 3: Cross multiply
    399,918,335.20x = 599,877,502.80 × 112,703,999.20
  4. Step 4: Simplify right side
    399,918,335.20x = 67,608,593,595,669,192
  5. Step 5: Solve for x
    x = 67,608,593,595,669,192/399,918,335.20
  6. Step 6: Final answer
    x = 169,055,998.80

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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.