Home / 7,113,489-9,816,615.30-3,894,225

Finding the Fourth Proportional to 7,113,489, 9,816,615.30 and 3,894,225

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Solution

The fourth proportional to 7,113,489, 9,816,615.30 and 3,894,225 is: 5,374,030.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,113,489 : 9,816,615.30 = 3,894,225 : x
  2. Step 2: Convert to fraction form
    7,113,489/9,816,615.30 = 3,894,225/x
  3. Step 3: Cross multiply
    7,113,489x = 9,816,615.30 × 3,894,225
  4. Step 4: Simplify right side
    7,113,489x = 38,228,108,716,642.50
  5. Step 5: Solve for x
    x = 38,228,108,716,642.50/7,113,489
  6. Step 6: Final answer
    x = 5,374,030.76

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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.