Home / 19,961,547.40-29,956,317.90-12,790,520.20

Finding the Fourth Proportional to 19,961,547.40, 29,956,317.90 and 12,790,520.20

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Solution

The fourth proportional to 19,961,547.40, 29,956,317.90 and 12,790,520.20 is: 19,194,748.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,961,547.40 : 29,956,317.90 = 12,790,520.20 : x
  2. Step 2: Convert to fraction form
    19,961,547.40/29,956,317.90 = 12,790,520.20/x
  3. Step 3: Cross multiply
    19,961,547.40x = 29,956,317.90 × 12,790,520.20
  4. Step 4: Simplify right side
    19,961,547.40x = 383,156,889,217,571.56
  5. Step 5: Solve for x
    x = 383,156,889,217,571.56/19,961,547.40
  6. Step 6: Final answer
    x = 19,194,748.86

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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.