Home / 318,028,268.61-477,053,031.78-87,978,088.53

Finding the Fourth Proportional to 318,028,268.61, 477,053,031.78 and 87,978,088.53

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Solution

The fourth proportional to 318,028,268.61, 477,053,031.78 and 87,978,088.53 is: 131,970,073.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,028,268.61 : 477,053,031.78 = 87,978,088.53 : x
  2. Step 2: Convert to fraction form
    318,028,268.61/477,053,031.78 = 87,978,088.53/x
  3. Step 3: Cross multiply
    318,028,268.61x = 477,053,031.78 × 87,978,088.53
  4. Step 4: Simplify right side
    318,028,268.61x = 41,970,213,863,445,744
  5. Step 5: Solve for x
    x = 41,970,213,863,445,744/318,028,268.61
  6. Step 6: Final answer
    x = 131,970,073.12

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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.