Home / 77,985,531.36-107,623,396.29-43,178,221.83

Finding the Fourth Proportional to 77,985,531.36, 107,623,396.29 and 43,178,221.83

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Solution

The fourth proportional to 77,985,531.36, 107,623,396.29 and 43,178,221.83 is: 59,587,808.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,985,531.36 : 107,623,396.29 = 43,178,221.83 : x
  2. Step 2: Convert to fraction form
    77,985,531.36/107,623,396.29 = 43,178,221.83/x
  3. Step 3: Cross multiply
    77,985,531.36x = 107,623,396.29 × 43,178,221.83
  4. Step 4: Simplify right side
    77,985,531.36x = 4,646,986,879,107,619
  5. Step 5: Solve for x
    x = 4,646,986,879,107,619/77,985,531.36
  6. Step 6: Final answer
    x = 59,587,808.12

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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.