Home / 43,315,146.32-64,969,471.80-12,609,961.58

Finding the Fourth Proportional to 43,315,146.32, 64,969,471.80 and 12,609,961.58

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Solution

The fourth proportional to 43,315,146.32, 64,969,471.80 and 12,609,961.58 is: 18,913,996.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,315,146.32 : 64,969,471.80 = 12,609,961.58 : x
  2. Step 2: Convert to fraction form
    43,315,146.32/64,969,471.80 = 12,609,961.58/x
  3. Step 3: Cross multiply
    43,315,146.32x = 64,969,471.80 × 12,609,961.58
  4. Step 4: Simplify right side
    43,315,146.32x = 819,262,543,270,893.38
  5. Step 5: Solve for x
    x = 819,262,543,270,893.38/43,315,146.32
  6. Step 6: Final answer
    x = 18,913,996.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.