Home / 12,356,844.60-18,535,266.90-7,821,881.40

Finding the Fourth Proportional to 12,356,844.60, 18,535,266.90 and 7,821,881.40

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Solution

The fourth proportional to 12,356,844.60, 18,535,266.90 and 7,821,881.40 is: 11,732,822.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356,844.60 : 18,535,266.90 = 7,821,881.40 : x
  2. Step 2: Convert to fraction form
    12,356,844.60/18,535,266.90 = 7,821,881.40/x
  3. Step 3: Cross multiply
    12,356,844.60x = 18,535,266.90 × 7,821,881.40
  4. Step 4: Simplify right side
    12,356,844.60x = 144,980,659,409,145.66
  5. Step 5: Solve for x
    x = 144,980,659,409,145.66/12,356,844.60
  6. Step 6: Final answer
    x = 11,732,822.10

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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.