Home / 10,021,867.85-13,830,215.58-5,438,189.23

Finding the Fourth Proportional to 10,021,867.85, 13,830,215.58 and 5,438,189.23

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Solution

The fourth proportional to 10,021,867.85, 13,830,215.58 and 5,438,189.23 is: 7,504,721.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,021,867.85 : 13,830,215.58 = 5,438,189.23 : x
  2. Step 2: Convert to fraction form
    10,021,867.85/13,830,215.58 = 5,438,189.23/x
  3. Step 3: Cross multiply
    10,021,867.85x = 13,830,215.58 × 5,438,189.23
  4. Step 4: Simplify right side
    10,021,867.85x = 75,211,329,381,158.67
  5. Step 5: Solve for x
    x = 75,211,329,381,158.67/10,021,867.85
  6. Step 6: Final answer
    x = 7,504,721.72

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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.