Home / 12,618,931.30-18,928,396.95-8,083,968.10

Finding the Fourth Proportional to 12,618,931.30, 18,928,396.95 and 8,083,968.10

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Solution

The fourth proportional to 12,618,931.30, 18,928,396.95 and 8,083,968.10 is: 12,125,952.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618,931.30 : 18,928,396.95 = 8,083,968.10 : x
  2. Step 2: Convert to fraction form
    12,618,931.30/18,928,396.95 = 8,083,968.10/x
  3. Step 3: Cross multiply
    12,618,931.30x = 18,928,396.95 × 8,083,968.10
  4. Step 4: Simplify right side
    12,618,931.30x = 153,016,557,127,937.28
  5. Step 5: Solve for x
    x = 153,016,557,127,937.28/12,618,931.30
  6. Step 6: Final answer
    x = 12,125,952.15

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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.