Home / 20,790,170.66-31,163,264.91-7,830,713.97

Finding the Fourth Proportional to 20,790,170.66, 31,163,264.91 and 7,830,713.97

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Solution

The fourth proportional to 20,790,170.66, 31,163,264.91 and 7,830,713.97 is: 11,737,787.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,790,170.66 : 31,163,264.91 = 7,830,713.97 : x
  2. Step 2: Convert to fraction form
    20,790,170.66/31,163,264.91 = 7,830,713.97/x
  3. Step 3: Cross multiply
    20,790,170.66x = 31,163,264.91 × 7,830,713.97
  4. Step 4: Simplify right side
    20,790,170.66x = 244,030,613,881,547.78
  5. Step 5: Solve for x
    x = 244,030,613,881,547.78/20,790,170.66
  6. Step 6: Final answer
    x = 11,737,787.91

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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.