Home / 657,086,942.40-985,566,358.80-172,412,750.40

Finding the Fourth Proportional to 657,086,942.40, 985,566,358.80 and 172,412,750.40

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Solution

The fourth proportional to 657,086,942.40, 985,566,358.80 and 172,412,750.40 is: 258,602,318.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,086,942.40 : 985,566,358.80 = 172,412,750.40 : x
  2. Step 2: Convert to fraction form
    657,086,942.40/985,566,358.80 = 172,412,750.40/x
  3. Step 3: Cross multiply
    657,086,942.40x = 985,566,358.80 × 172,412,750.40
  4. Step 4: Simplify right side
    657,086,942.40x = 169,924,206,622,421,248
  5. Step 5: Solve for x
    x = 169,924,206,622,421,248/657,086,942.40
  6. Step 6: Final answer
    x = 258,602,318.29

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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.