Home / 426,039,065.40-639,058,598.10-167,121,010.20

Finding the Fourth Proportional to 426,039,065.40, 639,058,598.10 and 167,121,010.20

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Solution

The fourth proportional to 426,039,065.40, 639,058,598.10 and 167,121,010.20 is: 250,681,515.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,039,065.40 : 639,058,598.10 = 167,121,010.20 : x
  2. Step 2: Convert to fraction form
    426,039,065.40/639,058,598.10 = 167,121,010.20/x
  3. Step 3: Cross multiply
    426,039,065.40x = 639,058,598.10 × 167,121,010.20
  4. Step 4: Simplify right side
    426,039,065.40x = 106,800,118,491,467,792
  5. Step 5: Solve for x
    x = 106,800,118,491,467,792/426,039,065.40
  6. Step 6: Final answer
    x = 250,681,515.30

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Double scale
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Similar ratio
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1.5x scale

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.