Home / 13,656,447.12-18,845,917.28-7,776,086.09

Finding the Fourth Proportional to 13,656,447.12, 18,845,917.28 and 7,776,086.09

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Solution

The fourth proportional to 13,656,447.12, 18,845,917.28 and 7,776,086.09 is: 10,731,010.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656,447.12 : 18,845,917.28 = 7,776,086.09 : x
  2. Step 2: Convert to fraction form
    13,656,447.12/18,845,917.28 = 7,776,086.09/x
  3. Step 3: Cross multiply
    13,656,447.12x = 18,845,917.28 × 7,776,086.09
  4. Step 4: Simplify right side
    13,656,447.12x = 146,547,475,214,298.66
  5. Step 5: Solve for x
    x = 146,547,475,214,298.66/13,656,447.12
  6. Step 6: Final answer
    x = 10,731,010.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.