Home / 13,779,711.40-20,669,567.10-6,605,257.90

Finding the Fourth Proportional to 13,779,711.40, 20,669,567.10 and 6,605,257.90

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Solution

The fourth proportional to 13,779,711.40, 20,669,567.10 and 6,605,257.90 is: 9,907,886.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779,711.40 : 20,669,567.10 = 6,605,257.90 : x
  2. Step 2: Convert to fraction form
    13,779,711.40/20,669,567.10 = 6,605,257.90/x
  3. Step 3: Cross multiply
    13,779,711.40x = 20,669,567.10 × 6,605,257.90
  4. Step 4: Simplify right side
    13,779,711.40x = 136,527,821,376,855.11
  5. Step 5: Solve for x
    x = 136,527,821,376,855.11/13,779,711.40
  6. Step 6: Final answer
    x = 9,907,886.85

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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.