Home / 31,630,254.96-47,447,464.19-8,287,569.40

Finding the Fourth Proportional to 31,630,254.96, 47,447,464.19 and 8,287,569.40

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Solution

The fourth proportional to 31,630,254.96, 47,447,464.19 and 8,287,569.40 is: 12,431,899.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,630,254.96 : 47,447,464.19 = 8,287,569.40 : x
  2. Step 2: Convert to fraction form
    31,630,254.96/47,447,464.19 = 8,287,569.40/x
  3. Step 3: Cross multiply
    31,630,254.96x = 47,447,464.19 × 8,287,569.40
  4. Step 4: Simplify right side
    31,630,254.96x = 393,224,152,112,121.38
  5. Step 5: Solve for x
    x = 393,224,152,112,121.38/31,630,254.96
  6. Step 6: Final answer
    x = 12,431,899.54

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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.