Home / 111,415,319.40-167,122,979.10-82,717,505.40

Finding the Fourth Proportional to 111,415,319.40, 167,122,979.10 and 82,717,505.40

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Solution

The fourth proportional to 111,415,319.40, 167,122,979.10 and 82,717,505.40 is: 124,076,258.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,415,319.40 : 167,122,979.10 = 82,717,505.40 : x
  2. Step 2: Convert to fraction form
    111,415,319.40/167,122,979.10 = 82,717,505.40/x
  3. Step 3: Cross multiply
    111,415,319.40x = 167,122,979.10 × 82,717,505.40
  4. Step 4: Simplify right side
    111,415,319.40x = 13,823,995,926,168,338
  5. Step 5: Solve for x
    x = 13,823,995,926,168,338/111,415,319.40
  6. Step 6: Final answer
    x = 124,076,258.10

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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.