Home / 168,876,299.42-253,478,254.80-81,499,307.30

Finding the Fourth Proportional to 168,876,299.42, 253,478,254.80 and 81,499,307.30

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Solution

The fourth proportional to 168,876,299.42, 253,478,254.80 and 81,499,307.30 is: 122,328,013.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,876,299.42 : 253,478,254.80 = 81,499,307.30 : x
  2. Step 2: Convert to fraction form
    168,876,299.42/253,478,254.80 = 81,499,307.30/x
  3. Step 3: Cross multiply
    168,876,299.42x = 253,478,254.80 × 81,499,307.30
  4. Step 4: Simplify right side
    168,876,299.42x = 20,658,302,181,812,900
  5. Step 5: Solve for x
    x = 20,658,302,181,812,900/168,876,299.42
  6. Step 6: Final answer
    x = 122,328,013.18

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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.