Home / 40,127,915.51-55,376,848.82-21,793,332.23

Finding the Fourth Proportional to 40,127,915.51, 55,376,848.82 and 21,793,332.23

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Solution

The fourth proportional to 40,127,915.51, 55,376,848.82 and 21,793,332.23 is: 30,074,975.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,127,915.51 : 55,376,848.82 = 21,793,332.23 : x
  2. Step 2: Convert to fraction form
    40,127,915.51/55,376,848.82 = 21,793,332.23/x
  3. Step 3: Cross multiply
    40,127,915.51x = 55,376,848.82 × 21,793,332.23
  4. Step 4: Simplify right side
    40,127,915.51x = 1,206,846,063,962,342.50
  5. Step 5: Solve for x
    x = 1,206,846,063,962,342.50/40,127,915.51
  6. Step 6: Final answer
    x = 30,074,975.21

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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.