Home / 12,565,881.60-18,848,822.40-11,642,092.80

Finding the Fourth Proportional to 12,565,881.60, 18,848,822.40 and 11,642,092.80

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Solution

The fourth proportional to 12,565,881.60, 18,848,822.40 and 11,642,092.80 is: 17,463,139.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,565,881.60 : 18,848,822.40 = 11,642,092.80 : x
  2. Step 2: Convert to fraction form
    12,565,881.60/18,848,822.40 = 11,642,092.80/x
  3. Step 3: Cross multiply
    12,565,881.60x = 18,848,822.40 × 11,642,092.80
  4. Step 4: Simplify right side
    12,565,881.60x = 219,439,739,551,518.72
  5. Step 5: Solve for x
    x = 219,439,739,551,518.72/12,565,881.60
  6. Step 6: Final answer
    x = 17,463,139.20

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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.