Home / 78,763,717.07-108,699,939.09-43,488,322.88

Finding the Fourth Proportional to 78,763,717.07, 108,699,939.09 and 43,488,322.88

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Solution

The fourth proportional to 78,763,717.07, 108,699,939.09 and 43,488,322.88 is: 60,017,203.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,763,717.07 : 108,699,939.09 = 43,488,322.88 : x
  2. Step 2: Convert to fraction form
    78,763,717.07/108,699,939.09 = 43,488,322.88/x
  3. Step 3: Cross multiply
    78,763,717.07x = 108,699,939.09 × 43,488,322.88
  4. Step 4: Simplify right side
    78,763,717.07x = 4,727,178,048,046,378
  5. Step 5: Solve for x
    x = 4,727,178,048,046,378/78,763,717.07
  6. Step 6: Final answer
    x = 60,017,203.65

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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.