Home / 7,167,931.11-9,891,740.64-3,948,667.11

Finding the Fourth Proportional to 7,167,931.11, 9,891,740.64 and 3,948,667.11

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Solution

The fourth proportional to 7,167,931.11, 9,891,740.64 and 3,948,667.11 is: 5,449,158.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,167,931.11 : 9,891,740.64 = 3,948,667.11 : x
  2. Step 2: Convert to fraction form
    7,167,931.11/9,891,740.64 = 3,948,667.11/x
  3. Step 3: Cross multiply
    7,167,931.11x = 9,891,740.64 × 3,948,667.11
  4. Step 4: Simplify right side
    7,167,931.11x = 39,059,190,925,818.35
  5. Step 5: Solve for x
    x = 39,059,190,925,818.35/7,167,931.11
  6. Step 6: Final answer
    x = 5,449,158.25

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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.