Home / 201,532,670.12-278,106,138.72-112,229,221.16

Finding the Fourth Proportional to 201,532,670.12, 278,106,138.72 and 112,229,221.16

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Solution

The fourth proportional to 201,532,670.12, 278,106,138.72 and 112,229,221.16 is: 154,871,343.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,532,670.12 : 278,106,138.72 = 112,229,221.16 : x
  2. Step 2: Convert to fraction form
    201,532,670.12/278,106,138.72 = 112,229,221.16/x
  3. Step 3: Cross multiply
    201,532,670.12x = 278,106,138.72 × 112,229,221.16
  4. Step 4: Simplify right side
    201,532,670.12x = 31,211,635,348,360,520
  5. Step 5: Solve for x
    x = 31,211,635,348,360,520/201,532,670.12
  6. Step 6: Final answer
    x = 154,871,343.34

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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.