Home / 20,401,899.40-30,602,849.10-19,232,729.20

Finding the Fourth Proportional to 20,401,899.40, 30,602,849.10 and 19,232,729.20

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Solution

The fourth proportional to 20,401,899.40, 30,602,849.10 and 19,232,729.20 is: 28,849,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,401,899.40 : 30,602,849.10 = 19,232,729.20 : x
  2. Step 2: Convert to fraction form
    20,401,899.40/30,602,849.10 = 19,232,729.20/x
  3. Step 3: Cross multiply
    20,401,899.40x = 30,602,849.10 × 19,232,729.20
  4. Step 4: Simplify right side
    20,401,899.40x = 588,576,309,488,763.75
  5. Step 5: Solve for x
    x = 588,576,309,488,763.75/20,401,899.40
  6. Step 6: Final answer
    x = 28,849,093.80

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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.