Home / 65,390,133.12-90,241,182.72-36,416,757.12

Finding the Fourth Proportional to 65,390,133.12, 90,241,182.72 and 36,416,757.12

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Solution

The fourth proportional to 65,390,133.12, 90,241,182.72 and 36,416,757.12 is: 50,256,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,390,133.12 : 90,241,182.72 = 36,416,757.12 : x
  2. Step 2: Convert to fraction form
    65,390,133.12/90,241,182.72 = 36,416,757.12/x
  3. Step 3: Cross multiply
    65,390,133.12x = 90,241,182.72 × 36,416,757.12
  4. Step 4: Simplify right side
    65,390,133.12x = 3,286,291,233,335,780.50
  5. Step 5: Solve for x
    x = 3,286,291,233,335,780.50/65,390,133.12
  6. Step 6: Final answer
    x = 50,256,683.64

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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.