Home / 78,080,647.16-107,751,303.30-43,275,584.68

Finding the Fourth Proportional to 78,080,647.16, 107,751,303.30 and 43,275,584.68

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Solution

The fourth proportional to 78,080,647.16, 107,751,303.30 and 43,275,584.68 is: 59,720,312.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,080,647.16 : 107,751,303.30 = 43,275,584.68 : x
  2. Step 2: Convert to fraction form
    78,080,647.16/107,751,303.30 = 43,275,584.68/x
  3. Step 3: Cross multiply
    78,080,647.16x = 107,751,303.30 × 43,275,584.68
  4. Step 4: Simplify right side
    78,080,647.16x = 4,663,000,650,339,513
  5. Step 5: Solve for x
    x = 4,663,000,650,339,513/78,080,647.16
  6. Step 6: Final answer
    x = 59,720,312.52

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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.