Home / 131,517,751.44-181,492,702.20-72,776,837.64

Finding the Fourth Proportional to 131,517,751.44, 181,492,702.20 and 72,776,837.64

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Solution

The fourth proportional to 131,517,751.44, 181,492,702.20 and 72,776,837.64 is: 100,431,042.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,517,751.44 : 181,492,702.20 = 72,776,837.64 : x
  2. Step 2: Convert to fraction form
    131,517,751.44/181,492,702.20 = 72,776,837.64/x
  3. Step 3: Cross multiply
    131,517,751.44x = 181,492,702.20 × 72,776,837.64
  4. Step 4: Simplify right side
    131,517,751.44x = 13,208,464,920,854,270
  5. Step 5: Solve for x
    x = 13,208,464,920,854,270/131,517,751.44
  6. Step 6: Final answer
    x = 100,431,042.78

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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.