Home / 216,646,288.13-298,971,877.62-123,828,788.87

Finding the Fourth Proportional to 216,646,288.13, 298,971,877.62 and 123,828,788.87

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Solution

The fourth proportional to 216,646,288.13, 298,971,877.62 and 123,828,788.87 is: 170,883,728.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,646,288.13 : 298,971,877.62 = 123,828,788.87 : x
  2. Step 2: Convert to fraction form
    216,646,288.13/298,971,877.62 = 123,828,788.87/x
  3. Step 3: Cross multiply
    216,646,288.13x = 298,971,877.62 × 123,828,788.87
  4. Step 4: Simplify right side
    216,646,288.13x = 37,021,325,511,874,464
  5. Step 5: Solve for x
    x = 37,021,325,511,874,464/216,646,288.13
  6. Step 6: Final answer
    x = 170,883,728.64

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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.