Home / 18,376,921.80-27,565,382.70-15,507,140.40

Finding the Fourth Proportional to 18,376,921.80, 27,565,382.70 and 15,507,140.40

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Solution

The fourth proportional to 18,376,921.80, 27,565,382.70 and 15,507,140.40 is: 23,260,710.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,376,921.80 : 27,565,382.70 = 15,507,140.40 : x
  2. Step 2: Convert to fraction form
    18,376,921.80/27,565,382.70 = 15,507,140.40/x
  3. Step 3: Cross multiply
    18,376,921.80x = 27,565,382.70 × 15,507,140.40
  4. Step 4: Simplify right side
    18,376,921.80x = 427,460,259,708,631.06
  5. Step 5: Solve for x
    x = 427,460,259,708,631.06/18,376,921.80
  6. Step 6: Final answer
    x = 23,260,710.60

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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.