Home / 287,257,958.10-430,886,937.15-199,582,002.90

Finding the Fourth Proportional to 287,257,958.10, 430,886,937.15 and 199,582,002.90

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Solution

The fourth proportional to 287,257,958.10, 430,886,937.15 and 199,582,002.90 is: 299,373,004.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,257,958.10 : 430,886,937.15 = 199,582,002.90 : x
  2. Step 2: Convert to fraction form
    287,257,958.10/430,886,937.15 = 199,582,002.90/x
  3. Step 3: Cross multiply
    287,257,958.10x = 430,886,937.15 × 199,582,002.90
  4. Step 4: Simplify right side
    287,257,958.10x = 85,997,277,939,843,408
  5. Step 5: Solve for x
    x = 85,997,277,939,843,408/287,257,958.10
  6. Step 6: Final answer
    x = 299,373,004.35

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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.