Home / 287,257,958.60-430,886,937.90-199,582,003.40

Finding the Fourth Proportional to 287,257,958.60, 430,886,937.90 and 199,582,003.40

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Solution

The fourth proportional to 287,257,958.60, 430,886,937.90 and 199,582,003.40 is: 299,373,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,257,958.60 : 430,886,937.90 = 199,582,003.40 : x
  2. Step 2: Convert to fraction form
    287,257,958.60/430,886,937.90 = 199,582,003.40/x
  3. Step 3: Cross multiply
    287,257,958.60x = 430,886,937.90 × 199,582,003.40
  4. Step 4: Simplify right side
    287,257,958.60x = 85,997,278,304,973,392
  5. Step 5: Solve for x
    x = 85,997,278,304,973,392/287,257,958.60
  6. Step 6: Final answer
    x = 299,373,005.10

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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.