Home / 20,148,166.81-30,219,297.56-9,910,278.53

Finding the Fourth Proportional to 20,148,166.81, 30,219,297.56 and 9,910,278.53

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Solution

The fourth proportional to 20,148,166.81, 30,219,297.56 and 9,910,278.53 is: 14,863,965.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148,166.81 : 30,219,297.56 = 9,910,278.53 : x
  2. Step 2: Convert to fraction form
    20,148,166.81/30,219,297.56 = 9,910,278.53/x
  3. Step 3: Cross multiply
    20,148,166.81x = 30,219,297.56 × 9,910,278.53
  4. Step 4: Simplify right side
    20,148,166.81x = 299,481,655,750,998
  5. Step 5: Solve for x
    x = 299,481,655,750,998/20,148,166.81
  6. Step 6: Final answer
    x = 14,863,965.47

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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.