Home / 21,031,599.40-31,561,395.90-11,933,679.40

Finding the Fourth Proportional to 21,031,599.40, 31,561,395.90 and 11,933,679.40

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Solution

The fourth proportional to 21,031,599.40, 31,561,395.90 and 11,933,679.40 is: 17,908,461.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,031,599.40 : 31,561,395.90 = 11,933,679.40 : x
  2. Step 2: Convert to fraction form
    21,031,599.40/31,561,395.90 = 11,933,679.40/x
  3. Step 3: Cross multiply
    21,031,599.40x = 31,561,395.90 × 11,933,679.40
  4. Step 4: Simplify right side
    21,031,599.40x = 376,643,580,087,074.44
  5. Step 5: Solve for x
    x = 376,643,580,087,074.44/21,031,599.40
  6. Step 6: Final answer
    x = 17,908,461.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.