Home / 15,779,375.25-21,775,326.15-8,810,159.84

Finding the Fourth Proportional to 15,779,375.25, 21,775,326.15 and 8,810,159.84

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Solution

The fourth proportional to 15,779,375.25, 21,775,326.15 and 8,810,159.84 is: 12,157,902.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,779,375.25 : 21,775,326.15 = 8,810,159.84 : x
  2. Step 2: Convert to fraction form
    15,779,375.25/21,775,326.15 = 8,810,159.84/x
  3. Step 3: Cross multiply
    15,779,375.25x = 21,775,326.15 × 8,810,159.84
  4. Step 4: Simplify right side
    15,779,375.25x = 191,844,103,949,631.81
  5. Step 5: Solve for x
    x = 191,844,103,949,631.81/15,779,375.25
  6. Step 6: Final answer
    x = 12,157,902.38

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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.