Home / 15,692,857.10-21,656,780.43-8,817,317.90

Finding the Fourth Proportional to 15,692,857.10, 21,656,780.43 and 8,817,317.90

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Solution

The fourth proportional to 15,692,857.10, 21,656,780.43 and 8,817,317.90 is: 12,168,256.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,692,857.10 : 21,656,780.43 = 8,817,317.90 : x
  2. Step 2: Convert to fraction form
    15,692,857.10/21,656,780.43 = 8,817,317.90/x
  3. Step 3: Cross multiply
    15,692,857.10x = 21,656,780.43 × 8,817,317.90
  4. Step 4: Simplify right side
    15,692,857.10x = 190,954,717,741,808.69
  5. Step 5: Solve for x
    x = 190,954,717,741,808.69/15,692,857.10
  6. Step 6: Final answer
    x = 12,168,256.97

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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.