Home / 210,356,505.38-315,568,661.43-64,790,018.66

Finding the Fourth Proportional to 210,356,505.38, 315,568,661.43 and 64,790,018.66

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Solution

The fourth proportional to 210,356,505.38, 315,568,661.43 and 64,790,018.66 is: 97,195,470.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,356,505.38 : 315,568,661.43 = 64,790,018.66 : x
  2. Step 2: Convert to fraction form
    210,356,505.38/315,568,661.43 = 64,790,018.66/x
  3. Step 3: Cross multiply
    210,356,505.38x = 315,568,661.43 × 64,790,018.66
  4. Step 4: Simplify right side
    210,356,505.38x = 20,445,699,462,560,920
  5. Step 5: Solve for x
    x = 20,445,699,462,560,920/210,356,505.38
  6. Step 6: Final answer
    x = 97,195,470.26

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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.