Home / 392,545,751.04-541,716,841.44-216,340,191.36

Finding the Fourth Proportional to 392,545,751.04, 541,716,841.44 and 216,340,191.36

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Solution

The fourth proportional to 392,545,751.04, 541,716,841.44 and 216,340,191.36 is: 298,551,505.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,545,751.04 : 541,716,841.44 = 216,340,191.36 : x
  2. Step 2: Convert to fraction form
    392,545,751.04/541,716,841.44 = 216,340,191.36/x
  3. Step 3: Cross multiply
    392,545,751.04x = 541,716,841.44 × 216,340,191.36
  4. Step 4: Simplify right side
    392,545,751.04x = 117,195,125,140,064,400
  5. Step 5: Solve for x
    x = 117,195,125,140,064,400/392,545,751.04
  6. Step 6: Final answer
    x = 298,551,505.98

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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.