Home / 20,656,946.80-30,985,420.20-18,389,465.20

Finding the Fourth Proportional to 20,656,946.80, 30,985,420.20 and 18,389,465.20

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Solution

The fourth proportional to 20,656,946.80, 30,985,420.20 and 18,389,465.20 is: 27,584,197.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,656,946.80 : 30,985,420.20 = 18,389,465.20 : x
  2. Step 2: Convert to fraction form
    20,656,946.80/30,985,420.20 = 18,389,465.20/x
  3. Step 3: Cross multiply
    20,656,946.80x = 30,985,420.20 × 18,389,465.20
  4. Step 4: Simplify right side
    20,656,946.80x = 569,805,306,475,277
  5. Step 5: Solve for x
    x = 569,805,306,475,277/20,656,946.80
  6. Step 6: Final answer
    x = 27,584,197.80

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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.