Home / 13,245,837.70-19,868,756.55-12,462,016.90

Finding the Fourth Proportional to 13,245,837.70, 19,868,756.55 and 12,462,016.90

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Solution

The fourth proportional to 13,245,837.70, 19,868,756.55 and 12,462,016.90 is: 18,693,025.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245,837.70 : 19,868,756.55 = 12,462,016.90 : x
  2. Step 2: Convert to fraction form
    13,245,837.70/19,868,756.55 = 12,462,016.90/x
  3. Step 3: Cross multiply
    13,245,837.70x = 19,868,756.55 × 12,462,016.90
  4. Step 4: Simplify right side
    13,245,837.70x = 247,604,779,908,085.72
  5. Step 5: Solve for x
    x = 247,604,779,908,085.72/13,245,837.70
  6. Step 6: Final answer
    x = 18,693,025.35

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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.