Home / 12,851,853.60-19,240,455.60-12,478,605.60

Finding the Fourth Proportional to 12,851,853.60, 19,240,455.60 and 12,478,605.60

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Solution

The fourth proportional to 12,851,853.60, 19,240,455.60 and 12,478,605.60 is: 18,681,667.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,851,853.60 : 19,240,455.60 = 12,478,605.60 : x
  2. Step 2: Convert to fraction form
    12,851,853.60/19,240,455.60 = 12,478,605.60/x
  3. Step 3: Cross multiply
    12,851,853.60x = 19,240,455.60 × 12,478,605.60
  4. Step 4: Simplify right side
    12,851,853.60x = 240,094,056,996,711.38
  5. Step 5: Solve for x
    x = 240,094,056,996,711.38/12,851,853.60
  6. Step 6: Final answer
    x = 18,681,667.60

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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.