Home / 278,534,416.88-384,258,251.76-173,930,884.04

Finding the Fourth Proportional to 278,534,416.88, 384,258,251.76 and 173,930,884.04

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Solution

The fourth proportional to 278,534,416.88, 384,258,251.76 and 173,930,884.04 is: 239,950,158.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,534,416.88 : 384,258,251.76 = 173,930,884.04 : x
  2. Step 2: Convert to fraction form
    278,534,416.88/384,258,251.76 = 173,930,884.04/x
  3. Step 3: Cross multiply
    278,534,416.88x = 384,258,251.76 × 173,930,884.04
  4. Step 4: Simplify right side
    278,534,416.88x = 66,834,377,428,281,680
  5. Step 5: Solve for x
    x = 66,834,377,428,281,680/278,534,416.88
  6. Step 6: Final answer
    x = 239,950,158.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.