Home / 3,881,381.55-5,356,343.15-2,139,113.77

Finding the Fourth Proportional to 3,881,381.55, 5,356,343.15 and 2,139,113.77

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Solution

The fourth proportional to 3,881,381.55, 5,356,343.15 and 2,139,113.77 is: 2,951,997.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881,381.55 : 5,356,343.15 = 2,139,113.77 : x
  2. Step 2: Convert to fraction form
    3,881,381.55/5,356,343.15 = 2,139,113.77/x
  3. Step 3: Cross multiply
    3,881,381.55x = 5,356,343.15 × 2,139,113.77
  4. Step 4: Simplify right side
    3,881,381.55x = 11,457,827,368,934.59
  5. Step 5: Solve for x
    x = 11,457,827,368,934.59/3,881,381.55
  6. Step 6: Final answer
    x = 2,951,997.17

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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.