Home / 76,421,379.16-105,463,218-43,378,515.64

Finding the Fourth Proportional to 76,421,379.16, 105,463,218 and 43,378,515.64

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Solution

The fourth proportional to 76,421,379.16, 105,463,218 and 43,378,515.64 is: 59,863,324.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,421,379.16 : 105,463,218 = 43,378,515.64 : x
  2. Step 2: Convert to fraction form
    76,421,379.16/105,463,218 = 43,378,515.64/x
  3. Step 3: Cross multiply
    76,421,379.16x = 105,463,218 × 43,378,515.64
  4. Step 4: Simplify right side
    76,421,379.16x = 4,574,837,851,457,730
  5. Step 5: Solve for x
    x = 4,574,837,851,457,730/76,421,379.16
  6. Step 6: Final answer
    x = 59,863,324.92

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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.