Home / 31,107,486.70-42,921,461.28-18,047,181.88

Finding the Fourth Proportional to 31,107,486.70, 42,921,461.28 and 18,047,181.88

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Solution

The fourth proportional to 31,107,486.70, 42,921,461.28 and 18,047,181.88 is: 24,901,125.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,107,486.70 : 42,921,461.28 = 18,047,181.88 : x
  2. Step 2: Convert to fraction form
    31,107,486.70/42,921,461.28 = 18,047,181.88/x
  3. Step 3: Cross multiply
    31,107,486.70x = 42,921,461.28 × 18,047,181.88
  4. Step 4: Simplify right side
    31,107,486.70x = 774,611,418,275,537.62
  5. Step 5: Solve for x
    x = 774,611,418,275,537.62/31,107,486.70
  6. Step 6: Final answer
    x = 24,901,125.11

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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.