Home / 19,509,079.40-29,232,126.30-12,307,725.80

Finding the Fourth Proportional to 19,509,079.40, 29,232,126.30 and 12,307,725.80

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Solution

The fourth proportional to 19,509,079.40, 29,232,126.30 and 12,307,725.80 is: 18,441,720.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,509,079.40 : 29,232,126.30 = 12,307,725.80 : x
  2. Step 2: Convert to fraction form
    19,509,079.40/29,232,126.30 = 12,307,725.80/x
  3. Step 3: Cross multiply
    19,509,079.40x = 29,232,126.30 × 12,307,725.80
  4. Step 4: Simplify right side
    19,509,079.40x = 359,780,995,051,368.56
  5. Step 5: Solve for x
    x = 359,780,995,051,368.56/19,509,079.40
  6. Step 6: Final answer
    x = 18,441,720.78

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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.