Home / 12,290,915.52-16,961,369.90-6,784,289.69

Finding the Fourth Proportional to 12,290,915.52, 16,961,369.90 and 6,784,289.69

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Solution

The fourth proportional to 12,290,915.52, 16,961,369.90 and 6,784,289.69 is: 9,362,268.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290,915.52 : 16,961,369.90 = 6,784,289.69 : x
  2. Step 2: Convert to fraction form
    12,290,915.52/16,961,369.90 = 6,784,289.69/x
  3. Step 3: Cross multiply
    12,290,915.52x = 16,961,369.90 × 6,784,289.69
  4. Step 4: Simplify right side
    12,290,915.52x = 115,070,846,822,118.02
  5. Step 5: Solve for x
    x = 115,070,846,822,118.02/12,290,915.52
  6. Step 6: Final answer
    x = 9,362,268.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.