Home / 318,974,682.40-478,462,023.60-137,576,154.40

Finding the Fourth Proportional to 318,974,682.40, 478,462,023.60 and 137,576,154.40

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Solution

The fourth proportional to 318,974,682.40, 478,462,023.60 and 137,576,154.40 is: 206,364,231.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,974,682.40 : 478,462,023.60 = 137,576,154.40 : x
  2. Step 2: Convert to fraction form
    318,974,682.40/478,462,023.60 = 137,576,154.40/x
  3. Step 3: Cross multiply
    318,974,682.40x = 478,462,023.60 × 137,576,154.40
  4. Step 4: Simplify right side
    318,974,682.40x = 65,824,965,233,330,048
  5. Step 5: Solve for x
    x = 65,824,965,233,330,048/318,974,682.40
  6. Step 6: Final answer
    x = 206,364,231.60

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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.