Home / 15,642,857,923.68-21,586,486,821.66-8,869,132,195.32

Finding the Fourth Proportional to 15,642,857,923.68, 21,586,486,821.66 and 8,869,132,195.32

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Solution

The fourth proportional to 15,642,857,923.68, 21,586,486,821.66 and 8,869,132,195.32 is: 12,239,029,861.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,642,857,923.68 : 21,586,486,821.66 = 8,869,132,195.32 : x
  2. Step 2: Convert to fraction form
    15,642,857,923.68/21,586,486,821.66 = 8,869,132,195.32/x
  3. Step 3: Cross multiply
    15,642,857,923.68x = 21,586,486,821.66 × 8,869,132,195.32
  4. Step 4: Simplify right side
    15,642,857,923.68x = 191,453,405,253,835,587,584
  5. Step 5: Solve for x
    x = 191,453,405,253,835,587,584/15,642,857,923.68
  6. Step 6: Final answer
    x = 12,239,029,861.93

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.