Home / 285,429,298.20-428,143,947.30-199,335,856.20

Finding the Fourth Proportional to 285,429,298.20, 428,143,947.30 and 199,335,856.20

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Solution

The fourth proportional to 285,429,298.20, 428,143,947.30 and 199,335,856.20 is: 299,003,784.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,429,298.20 : 428,143,947.30 = 199,335,856.20 : x
  2. Step 2: Convert to fraction form
    285,429,298.20/428,143,947.30 = 199,335,856.20/x
  3. Step 3: Cross multiply
    285,429,298.20x = 428,143,947.30 × 199,335,856.20
  4. Step 4: Simplify right side
    285,429,298.20x = 85,344,440,311,893,168
  5. Step 5: Solve for x
    x = 85,344,440,311,893,168/285,429,298.20
  6. Step 6: Final answer
    x = 299,003,784.30

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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.