Home / 28,228,392.61-38,955,853.36-15,839,402.61

Finding the Fourth Proportional to 28,228,392.61, 38,955,853.36 and 15,839,402.61

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Solution

The fourth proportional to 28,228,392.61, 38,955,853.36 and 15,839,402.61 is: 21,858,752.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,228,392.61 : 38,955,853.36 = 15,839,402.61 : x
  2. Step 2: Convert to fraction form
    28,228,392.61/38,955,853.36 = 15,839,402.61/x
  3. Step 3: Cross multiply
    28,228,392.61x = 38,955,853.36 × 15,839,402.61
  4. Step 4: Simplify right side
    28,228,392.61x = 617,037,445,551,044.88
  5. Step 5: Solve for x
    x = 617,037,445,551,044.88/28,228,392.61
  6. Step 6: Final answer
    x = 21,858,752.43

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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.