Home / 18,689,984.70-28,004,796.45-10,578,839.10

Finding the Fourth Proportional to 18,689,984.70, 28,004,796.45 and 10,578,839.10

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Solution

The fourth proportional to 18,689,984.70, 28,004,796.45 and 10,578,839.10 is: 15,851,175.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689,984.70 : 28,004,796.45 = 10,578,839.10 : x
  2. Step 2: Convert to fraction form
    18,689,984.70/28,004,796.45 = 10,578,839.10/x
  3. Step 3: Cross multiply
    18,689,984.70x = 28,004,796.45 × 10,578,839.10
  4. Step 4: Simplify right side
    18,689,984.70x = 296,258,235,672,801.19
  5. Step 5: Solve for x
    x = 296,258,235,672,801.19/18,689,984.70
  6. Step 6: Final answer
    x = 15,851,175.93

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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.