Home / 13,793,122.05-20,689,683.08-12,278,515.20

Finding the Fourth Proportional to 13,793,122.05, 20,689,683.08 and 12,278,515.20

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Solution

The fourth proportional to 13,793,122.05, 20,689,683.08 and 12,278,515.20 is: 18,417,772.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,793,122.05 : 20,689,683.08 = 12,278,515.20 : x
  2. Step 2: Convert to fraction form
    13,793,122.05/20,689,683.08 = 12,278,515.20/x
  3. Step 3: Cross multiply
    13,793,122.05x = 20,689,683.08 × 12,278,515.20
  4. Step 4: Simplify right side
    13,793,122.05x = 254,038,588,119,570.22
  5. Step 5: Solve for x
    x = 254,038,588,119,570.22/13,793,122.05
  6. Step 6: Final answer
    x = 18,417,772.80

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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.