Home / 657,087,071.40-985,566,552.30-172,412,879.40

Finding the Fourth Proportional to 657,087,071.40, 985,566,552.30 and 172,412,879.40

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Solution

The fourth proportional to 657,087,071.40, 985,566,552.30 and 172,412,879.40 is: 258,602,511.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,087,071.40 : 985,566,552.30 = 172,412,879.40 : x
  2. Step 2: Convert to fraction form
    657,087,071.40/985,566,552.30 = 172,412,879.40/x
  3. Step 3: Cross multiply
    657,087,071.40x = 985,566,552.30 × 172,412,879.40
  4. Step 4: Simplify right side
    657,087,071.40x = 169,924,367,122,373,696
  5. Step 5: Solve for x
    x = 169,924,367,122,373,696/657,087,071.40
  6. Step 6: Final answer
    x = 258,602,511.78

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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.