Home / 66,436,661.10-99,654,991.65-28,085,429.10

Finding the Fourth Proportional to 66,436,661.10, 99,654,991.65 and 28,085,429.10

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Solution

The fourth proportional to 66,436,661.10, 99,654,991.65 and 28,085,429.10 is: 42,128,143.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,436,661.10 : 99,654,991.65 = 28,085,429.10 : x
  2. Step 2: Convert to fraction form
    66,436,661.10/99,654,991.65 = 28,085,429.10/x
  3. Step 3: Cross multiply
    66,436,661.10x = 99,654,991.65 × 28,085,429.10
  4. Step 4: Simplify right side
    66,436,661.10x = 2,798,853,202,447,167.50
  5. Step 5: Solve for x
    x = 2,798,853,202,447,167.50/66,436,661.10
  6. Step 6: Final answer
    x = 42,128,143.65

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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.