Home / 28,029,540,798.42-38,681,007,482.34-15,987,161,325.30

Finding the Fourth Proportional to 28,029,540,798.42, 38,681,007,482.34 and 15,987,161,325.30

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Solution

The fourth proportional to 28,029,540,798.42, 38,681,007,482.34 and 15,987,161,325.30 is: 22,062,420,190.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,029,540,798.42 : 38,681,007,482.34 = 15,987,161,325.30 : x
  2. Step 2: Convert to fraction form
    28,029,540,798.42/38,681,007,482.34 = 15,987,161,325.30/x
  3. Step 3: Cross multiply
    28,029,540,798.42x = 38,681,007,482.34 × 15,987,161,325.30
  4. Step 4: Simplify right side
    28,029,540,798.42x = 618,399,506,845,305,929,728
  5. Step 5: Solve for x
    x = 618,399,506,845,305,929,728/28,029,540,798.42
  6. Step 6: Final answer
    x = 22,062,420,190.64

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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.