Home / 579,489,249.90-869,233,874.85-191,371,982.70

Finding the Fourth Proportional to 579,489,249.90, 869,233,874.85 and 191,371,982.70

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Solution

The fourth proportional to 579,489,249.90, 869,233,874.85 and 191,371,982.70 is: 287,057,974.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,489,249.90 : 869,233,874.85 = 191,371,982.70 : x
  2. Step 2: Convert to fraction form
    579,489,249.90/869,233,874.85 = 191,371,982.70/x
  3. Step 3: Cross multiply
    579,489,249.90x = 869,233,874.85 × 191,371,982.70
  4. Step 4: Simplify right side
    579,489,249.90x = 166,347,010,060,048,160
  5. Step 5: Solve for x
    x = 166,347,010,060,048,160/579,489,249.90
  6. Step 6: Final answer
    x = 287,057,974.05

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Double scale
Find fourth proportional to 579,489,250.90, 869,233,876.35 and 191,371,983.70
Similar ratio
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1.5x scale

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.