Home / 20,414,430-30,627,320.13-8,900,903.43

Finding the Fourth Proportional to 20,414,430, 30,627,320.13 and 8,900,903.43

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Solution

The fourth proportional to 20,414,430, 30,627,320.13 and 8,900,903.43 is: 13,353,829.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414,430 : 30,627,320.13 = 8,900,903.43 : x
  2. Step 2: Convert to fraction form
    20,414,430/30,627,320.13 = 8,900,903.43/x
  3. Step 3: Cross multiply
    20,414,430x = 30,627,320.13 × 8,900,903.43
  4. Step 4: Simplify right side
    20,414,430x = 272,610,818,796,825.03
  5. Step 5: Solve for x
    x = 272,610,818,796,825.03/20,414,430
  6. Step 6: Final answer
    x = 13,353,829.56

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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.