Home / 485,536,069.02-670,101,142.76-318,412,932.02

Finding the Fourth Proportional to 485,536,069.02, 670,101,142.76 and 318,412,932.02

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Solution

The fourth proportional to 485,536,069.02, 670,101,142.76 and 318,412,932.02 is: 439,450,090.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,536,069.02 : 670,101,142.76 = 318,412,932.02 : x
  2. Step 2: Convert to fraction form
    485,536,069.02/670,101,142.76 = 318,412,932.02/x
  3. Step 3: Cross multiply
    485,536,069.02x = 670,101,142.76 × 318,412,932.02
  4. Step 4: Simplify right side
    485,536,069.02x = 213,368,869,616,718,016
  5. Step 5: Solve for x
    x = 213,368,869,616,718,016/485,536,069.02
  6. Step 6: Final answer
    x = 439,450,090.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.