Home / 14,432,775.89-19,917,072.15-7,817,199.76

Finding the Fourth Proportional to 14,432,775.89, 19,917,072.15 and 7,817,199.76

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Solution

The fourth proportional to 14,432,775.89, 19,917,072.15 and 7,817,199.76 is: 10,787,649.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,432,775.89 : 19,917,072.15 = 7,817,199.76 : x
  2. Step 2: Convert to fraction form
    14,432,775.89/19,917,072.15 = 7,817,199.76/x
  3. Step 3: Cross multiply
    14,432,775.89x = 19,917,072.15 × 7,817,199.76
  4. Step 4: Simplify right side
    14,432,775.89x = 155,695,731,531,297.31
  5. Step 5: Solve for x
    x = 155,695,731,531,297.31/14,432,775.89
  6. Step 6: Final answer
    x = 10,787,649.78

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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.