Home / 27,218,009.70-40,827,014.55-18,595,980.90

Finding the Fourth Proportional to 27,218,009.70, 40,827,014.55 and 18,595,980.90

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Solution

The fourth proportional to 27,218,009.70, 40,827,014.55 and 18,595,980.90 is: 27,893,971.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,218,009.70 : 40,827,014.55 = 18,595,980.90 : x
  2. Step 2: Convert to fraction form
    27,218,009.70/40,827,014.55 = 18,595,980.90/x
  3. Step 3: Cross multiply
    27,218,009.70x = 40,827,014.55 × 18,595,980.90
  4. Step 4: Simplify right side
    27,218,009.70x = 759,218,382,775,822
  5. Step 5: Solve for x
    x = 759,218,382,775,822/27,218,009.70
  6. Step 6: Final answer
    x = 27,893,971.35

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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.