Home / 31,705,990.72-43,754,524.32-17,219,406.40

Finding the Fourth Proportional to 31,705,990.72, 43,754,524.32 and 17,219,406.40

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Solution

The fourth proportional to 31,705,990.72, 43,754,524.32 and 17,219,406.40 is: 23,762,920.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,705,990.72 : 43,754,524.32 = 17,219,406.40 : x
  2. Step 2: Convert to fraction form
    31,705,990.72/43,754,524.32 = 17,219,406.40/x
  3. Step 3: Cross multiply
    31,705,990.72x = 43,754,524.32 × 17,219,406.40
  4. Step 4: Simplify right side
    31,705,990.72x = 753,426,936,104,763.62
  5. Step 5: Solve for x
    x = 753,426,936,104,763.62/31,705,990.72
  6. Step 6: Final answer
    x = 23,762,920.48

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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.