Home / 13,429,217.80-20,143,826.70-9,390,266.20

Finding the Fourth Proportional to 13,429,217.80, 20,143,826.70 and 9,390,266.20

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Solution

The fourth proportional to 13,429,217.80, 20,143,826.70 and 9,390,266.20 is: 14,085,399.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429,217.80 : 20,143,826.70 = 9,390,266.20 : x
  2. Step 2: Convert to fraction form
    13,429,217.80/20,143,826.70 = 9,390,266.20/x
  3. Step 3: Cross multiply
    13,429,217.80x = 20,143,826.70 × 9,390,266.20
  4. Step 4: Simplify right side
    13,429,217.80x = 189,155,894,999,667.53
  5. Step 5: Solve for x
    x = 189,155,894,999,667.53/13,429,217.80
  6. Step 6: Final answer
    x = 14,085,399.30

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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.