Home / 107,680,138.40-161,520,207.60-64,681,968.80

Finding the Fourth Proportional to 107,680,138.40, 161,520,207.60 and 64,681,968.80

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Solution

The fourth proportional to 107,680,138.40, 161,520,207.60 and 64,681,968.80 is: 97,022,953.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,680,138.40 : 161,520,207.60 = 64,681,968.80 : x
  2. Step 2: Convert to fraction form
    107,680,138.40/161,520,207.60 = 64,681,968.80/x
  3. Step 3: Cross multiply
    107,680,138.40x = 161,520,207.60 × 64,681,968.80
  4. Step 4: Simplify right side
    107,680,138.40x = 10,447,445,028,552,722
  5. Step 5: Solve for x
    x = 10,447,445,028,552,722/107,680,138.40
  6. Step 6: Final answer
    x = 97,022,953.20

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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.