Home / 20,139,389.40-30,209,084.10-5,762,926.20

Finding the Fourth Proportional to 20,139,389.40, 30,209,084.10 and 5,762,926.20

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Solution

The fourth proportional to 20,139,389.40, 30,209,084.10 and 5,762,926.20 is: 8,644,389.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,139,389.40 : 30,209,084.10 = 5,762,926.20 : x
  2. Step 2: Convert to fraction form
    20,139,389.40/30,209,084.10 = 5,762,926.20/x
  3. Step 3: Cross multiply
    20,139,389.40x = 30,209,084.10 × 5,762,926.20
  4. Step 4: Simplify right side
    20,139,389.40x = 174,092,722,237,893.44
  5. Step 5: Solve for x
    x = 174,092,722,237,893.44/20,139,389.40
  6. Step 6: Final answer
    x = 8,644,389.30

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1.5x scale

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.