Home / 13,181,721.40-19,772,582.10-12,565,862.20

Finding the Fourth Proportional to 13,181,721.40, 19,772,582.10 and 12,565,862.20

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Solution

The fourth proportional to 13,181,721.40, 19,772,582.10 and 12,565,862.20 is: 18,848,793.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181,721.40 : 19,772,582.10 = 12,565,862.20 : x
  2. Step 2: Convert to fraction form
    13,181,721.40/19,772,582.10 = 12,565,862.20/x
  3. Step 3: Cross multiply
    13,181,721.40x = 19,772,582.10 × 12,565,862.20
  4. Step 4: Simplify right side
    13,181,721.40x = 248,459,542,006,786.62
  5. Step 5: Solve for x
    x = 248,459,542,006,786.62/13,181,721.40
  6. Step 6: Final answer
    x = 18,848,793.30

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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.