Home / 1,192,521,971.87-1,789,148,021.56-610,668,191.87

Finding the Fourth Proportional to 1,192,521,971.87, 1,789,148,021.56 and 610,668,191.87

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Solution

The fourth proportional to 1,192,521,971.87, 1,789,148,021.56 and 610,668,191.87 is: 916,189,230.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,521,971.87 : 1,789,148,021.56 = 610,668,191.87 : x
  2. Step 2: Convert to fraction form
    1,192,521,971.87/1,789,148,021.56 = 610,668,191.87/x
  3. Step 3: Cross multiply
    1,192,521,971.87x = 1,789,148,021.56 × 610,668,191.87
  4. Step 4: Simplify right side
    1,192,521,971.87x = 1,092,575,787,313,832,960
  5. Step 5: Solve for x
    x = 1,092,575,787,313,832,960/1,192,521,971.87
  6. Step 6: Final answer
    x = 916,189,230.12

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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.