Home / 230,100,985.78-345,199,953.12-74,642,655.18

Finding the Fourth Proportional to 230,100,985.78, 345,199,953.12 and 74,642,655.18

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Solution

The fourth proportional to 230,100,985.78, 345,199,953.12 and 74,642,655.18 is: 111,979,707.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,100,985.78 : 345,199,953.12 = 74,642,655.18 : x
  2. Step 2: Convert to fraction form
    230,100,985.78/345,199,953.12 = 74,642,655.18/x
  3. Step 3: Cross multiply
    230,100,985.78x = 345,199,953.12 × 74,642,655.18
  4. Step 4: Simplify right side
    230,100,985.78x = 25,766,641,068,888,328
  5. Step 5: Solve for x
    x = 25,766,641,068,888,328/230,100,985.78
  6. Step 6: Final answer
    x = 111,979,707.44

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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.