Home / 354,138,588.40-531,307,415.40-172,391,695.60

Finding the Fourth Proportional to 354,138,588.40, 531,307,415.40 and 172,391,695.60

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Solution

The fourth proportional to 354,138,588.40, 531,307,415.40 and 172,391,695.60 is: 258,635,995.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,138,588.40 : 531,307,415.40 = 172,391,695.60 : x
  2. Step 2: Convert to fraction form
    354,138,588.40/531,307,415.40 = 172,391,695.60/x
  3. Step 3: Cross multiply
    354,138,588.40x = 531,307,415.40 × 172,391,695.60
  4. Step 4: Simplify right side
    354,138,588.40x = 91,592,986,225,659,552
  5. Step 5: Solve for x
    x = 91,592,986,225,659,552/354,138,588.40
  6. Step 6: Final answer
    x = 258,635,995.13

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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.