Home / 19,961,546.40-29,956,316.40-12,790,519.20

Finding the Fourth Proportional to 19,961,546.40, 29,956,316.40 and 12,790,519.20

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Solution

The fourth proportional to 19,961,546.40, 29,956,316.40 and 12,790,519.20 is: 19,194,747.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,961,546.40 : 29,956,316.40 = 12,790,519.20 : x
  2. Step 2: Convert to fraction form
    19,961,546.40/29,956,316.40 = 12,790,519.20/x
  3. Step 3: Cross multiply
    19,961,546.40x = 29,956,316.40 × 12,790,519.20
  4. Step 4: Simplify right side
    19,961,546.40x = 383,156,840,075,474.81
  5. Step 5: Solve for x
    x = 383,156,840,075,474.81/19,961,546.40
  6. Step 6: Final answer
    x = 19,194,747.36

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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.