Home / 20,734,864.72-31,077,081.90-14,671,344.40

Finding the Fourth Proportional to 20,734,864.72, 31,077,081.90 and 14,671,344.40

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Solution

The fourth proportional to 20,734,864.72, 31,077,081.90 and 14,671,344.40 is: 21,989,175.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734,864.72 : 31,077,081.90 = 14,671,344.40 : x
  2. Step 2: Convert to fraction form
    20,734,864.72/31,077,081.90 = 14,671,344.40/x
  3. Step 3: Cross multiply
    20,734,864.72x = 31,077,081.90 × 14,671,344.40
  4. Step 4: Simplify right side
    20,734,864.72x = 455,942,571,501,906.38
  5. Step 5: Solve for x
    x = 455,942,571,501,906.38/20,734,864.72
  6. Step 6: Final answer
    x = 21,989,175.12

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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.