Home / 1,238,478,199.14-1,709,100,193.80-681,561,246.21

Finding the Fourth Proportional to 1,238,478,199.14, 1,709,100,193.80 and 681,561,246.21

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Solution

The fourth proportional to 1,238,478,199.14, 1,709,100,193.80 and 681,561,246.21 is: 940,554,673.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,478,199.14 : 1,709,100,193.80 = 681,561,246.21 : x
  2. Step 2: Convert to fraction form
    1,238,478,199.14/1,709,100,193.80 = 681,561,246.21/x
  3. Step 3: Cross multiply
    1,238,478,199.14x = 1,709,100,193.80 × 681,561,246.21
  4. Step 4: Simplify right side
    1,238,478,199.14x = 1,164,856,457,976,444,416
  5. Step 5: Solve for x
    x = 1,164,856,457,976,444,416/1,238,478,199.14
  6. Step 6: Final answer
    x = 940,554,673.29

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Double scale
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1.5x scale

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.