Home / 1,382,910,726.27-1,907,210,720.43-980,227,989.87

Finding the Fourth Proportional to 1,382,910,726.27, 1,907,210,720.43 and 980,227,989.87

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Solution

The fourth proportional to 1,382,910,726.27, 1,907,210,720.43 and 980,227,989.87 is: 1,351,859,737.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,910,726.27 : 1,907,210,720.43 = 980,227,989.87 : x
  2. Step 2: Convert to fraction form
    1,382,910,726.27/1,907,210,720.43 = 980,227,989.87/x
  3. Step 3: Cross multiply
    1,382,910,726.27x = 1,907,210,720.43 × 980,227,989.87
  4. Step 4: Simplify right side
    1,382,910,726.27x = 1,869,501,330,745,613,568
  5. Step 5: Solve for x
    x = 1,869,501,330,745,613,568/1,382,910,726.27
  6. Step 6: Final answer
    x = 1,351,859,737.03

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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.