Home / 278,094,486.52-418,806,455.92-253,271,578.04

Finding the Fourth Proportional to 278,094,486.52, 418,806,455.92 and 253,271,578.04

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Solution

The fourth proportional to 278,094,486.52, 418,806,455.92 and 253,271,578.04 is: 381,423,498.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,094,486.52 : 418,806,455.92 = 253,271,578.04 : x
  2. Step 2: Convert to fraction form
    278,094,486.52/418,806,455.92 = 253,271,578.04/x
  3. Step 3: Cross multiply
    278,094,486.52x = 418,806,455.92 × 253,271,578.04
  4. Step 4: Simplify right side
    278,094,486.52x = 106,071,771,983,041,408
  5. Step 5: Solve for x
    x = 106,071,771,983,041,408/278,094,486.52
  6. Step 6: Final answer
    x = 381,423,498.57

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.