Home / 111,668,209.20-167,502,313.80-85,840,176.60

Finding the Fourth Proportional to 111,668,209.20, 167,502,313.80 and 85,840,176.60

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Solution

The fourth proportional to 111,668,209.20, 167,502,313.80 and 85,840,176.60 is: 128,760,264.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,668,209.20 : 167,502,313.80 = 85,840,176.60 : x
  2. Step 2: Convert to fraction form
    111,668,209.20/167,502,313.80 = 85,840,176.60/x
  3. Step 3: Cross multiply
    111,668,209.20x = 167,502,313.80 × 85,840,176.60
  4. Step 4: Simplify right side
    111,668,209.20x = 14,378,428,197,500,618
  5. Step 5: Solve for x
    x = 14,378,428,197,500,618/111,668,209.20
  6. Step 6: Final answer
    x = 128,760,264.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.