Home / 120,258,005.46-180,298,682.43-38,329,719.54

Finding the Fourth Proportional to 120,258,005.46, 180,298,682.43 and 38,329,719.54

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Solution

The fourth proportional to 120,258,005.46, 180,298,682.43 and 38,329,719.54 is: 57,466,427.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,258,005.46 : 180,298,682.43 = 38,329,719.54 : x
  2. Step 2: Convert to fraction form
    120,258,005.46/180,298,682.43 = 38,329,719.54/x
  3. Step 3: Cross multiply
    120,258,005.46x = 180,298,682.43 × 38,329,719.54
  4. Step 4: Simplify right side
    120,258,005.46x = 6,910,797,930,973,426
  5. Step 5: Solve for x
    x = 6,910,797,930,973,426/120,258,005.46
  6. Step 6: Final answer
    x = 57,466,427.32

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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.