Home / 28,029,540,796.92-38,681,007,480.27-15,987,161,323.80

Finding the Fourth Proportional to 28,029,540,796.92, 38,681,007,480.27 and 15,987,161,323.80

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Solution

The fourth proportional to 28,029,540,796.92, 38,681,007,480.27 and 15,987,161,323.80 is: 22,062,420,188.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,029,540,796.92 : 38,681,007,480.27 = 15,987,161,323.80 : x
  2. Step 2: Convert to fraction form
    28,029,540,796.92/38,681,007,480.27 = 15,987,161,323.80/x
  3. Step 3: Cross multiply
    28,029,540,796.92x = 38,681,007,480.27 × 15,987,161,323.80
  4. Step 4: Simplify right side
    28,029,540,796.92x = 618,399,506,754,190,966,784
  5. Step 5: Solve for x
    x = 618,399,506,754,190,966,784/28,029,540,796.92
  6. Step 6: Final answer
    x = 22,062,420,188.57

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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.