Home / 5,378,372.68-7,421,938.32-2,930,931.56

Finding the Fourth Proportional to 5,378,372.68, 7,421,938.32 and 2,930,931.56

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Solution

The fourth proportional to 5,378,372.68, 7,421,938.32 and 2,930,931.56 is: 4,044,567.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378,372.68 : 7,421,938.32 = 2,930,931.56 : x
  2. Step 2: Convert to fraction form
    5,378,372.68/7,421,938.32 = 2,930,931.56/x
  3. Step 3: Cross multiply
    5,378,372.68x = 7,421,938.32 × 2,930,931.56
  4. Step 4: Simplify right side
    5,378,372.68x = 21,753,193,258,461.38
  5. Step 5: Solve for x
    x = 21,753,193,258,461.38/5,378,372.68
  6. Step 6: Final answer
    x = 4,044,567.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.