Home / 15,314,083,049.02-21,133,454,965.91-8,447,324,781.56

Finding the Fourth Proportional to 15,314,083,049.02, 21,133,454,965.91 and 8,447,324,781.56

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Solution

The fourth proportional to 15,314,083,049.02, 21,133,454,965.91 and 8,447,324,781.56 is: 11,657,319,428.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314,083,049.02 : 21,133,454,965.91 = 8,447,324,781.56 : x
  2. Step 2: Convert to fraction form
    15,314,083,049.02/21,133,454,965.91 = 8,447,324,781.56/x
  3. Step 3: Cross multiply
    15,314,083,049.02x = 21,133,454,965.91 × 8,447,324,781.56
  4. Step 4: Simplify right side
    15,314,083,049.02x = 178,521,157,853,376,446,464
  5. Step 5: Solve for x
    x = 178,521,157,853,376,446,464/15,314,083,049.02
  6. Step 6: Final answer
    x = 11,657,319,428.26

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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.