Home / 13,868,669.40-20,794,709.70-7,150,205.40

Finding the Fourth Proportional to 13,868,669.40, 20,794,709.70 and 7,150,205.40

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Solution

The fourth proportional to 13,868,669.40, 20,794,709.70 and 7,150,205.40 is: 10,721,031.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868,669.40 : 20,794,709.70 = 7,150,205.40 : x
  2. Step 2: Convert to fraction form
    13,868,669.40/20,794,709.70 = 7,150,205.40/x
  3. Step 3: Cross multiply
    13,868,669.40x = 20,794,709.70 × 7,150,205.40
  4. Step 4: Simplify right side
    13,868,669.40x = 148,686,445,588,372.38
  5. Step 5: Solve for x
    x = 148,686,445,588,372.38/13,868,669.40
  6. Step 6: Final answer
    x = 10,721,031.79

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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.