Home / 28,242,207,476.88-38,976,016,334.76-15,554,940,619.92

Finding the Fourth Proportional to 28,242,207,476.88, 38,976,016,334.76 and 15,554,940,619.92

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Solution

The fourth proportional to 28,242,207,476.88, 38,976,016,334.76 and 15,554,940,619.92 is: 21,466,792,926.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242,207,476.88 : 38,976,016,334.76 = 15,554,940,619.92 : x
  2. Step 2: Convert to fraction form
    28,242,207,476.88/38,976,016,334.76 = 15,554,940,619.92/x
  3. Step 3: Cross multiply
    28,242,207,476.88x = 38,976,016,334.76 × 15,554,940,619.92
  4. Step 4: Simplify right side
    28,242,207,476.88x = 606,269,619,688,223,801,344
  5. Step 5: Solve for x
    x = 606,269,619,688,223,801,344/28,242,207,476.88
  6. Step 6: Final answer
    x = 21,466,792,926.32

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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.