Home / 12,851,796.60-19,240,370.10-12,478,548.60

Finding the Fourth Proportional to 12,851,796.60, 19,240,370.10 and 12,478,548.60

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Solution

The fourth proportional to 12,851,796.60, 19,240,370.10 and 12,478,548.60 is: 18,681,582.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,851,796.60 : 19,240,370.10 = 12,478,548.60 : x
  2. Step 2: Convert to fraction form
    12,851,796.60/19,240,370.10 = 12,478,548.60/x
  3. Step 3: Cross multiply
    12,851,796.60x = 19,240,370.10 × 12,478,548.60
  4. Step 4: Simplify right side
    12,851,796.60x = 240,091,893,374,836.88
  5. Step 5: Solve for x
    x = 240,091,893,374,836.88/12,851,796.60
  6. Step 6: Final answer
    x = 18,681,582.10

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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.