Home / 13,656,447.61-18,845,917.97-7,776,086.59

Finding the Fourth Proportional to 13,656,447.61, 18,845,917.97 and 7,776,086.59

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Solution

The fourth proportional to 13,656,447.61, 18,845,917.97 and 7,776,086.59 is: 10,731,011.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656,447.61 : 18,845,917.97 = 7,776,086.59 : x
  2. Step 2: Convert to fraction form
    13,656,447.61/18,845,917.97 = 7,776,086.59/x
  3. Step 3: Cross multiply
    13,656,447.61x = 18,845,917.97 × 7,776,086.59
  4. Step 4: Simplify right side
    13,656,447.61x = 146,547,490,002,757
  5. Step 5: Solve for x
    x = 146,547,490,002,757/13,656,447.61
  6. Step 6: Final answer
    x = 10,731,011.04

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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.