Home / 123,389,810.39-170,178,651.60-108,473,240.63

Finding the Fourth Proportional to 123,389,810.39, 170,178,651.60 and 108,473,240.63

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Solution

The fourth proportional to 123,389,810.39, 170,178,651.60 and 108,473,240.63 is: 149,605,788.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,389,810.39 : 170,178,651.60 = 108,473,240.63 : x
  2. Step 2: Convert to fraction form
    123,389,810.39/170,178,651.60 = 108,473,240.63/x
  3. Step 3: Cross multiply
    123,389,810.39x = 170,178,651.60 × 108,473,240.63
  4. Step 4: Simplify right side
    123,389,810.39x = 18,459,829,824,782,968
  5. Step 5: Solve for x
    x = 18,459,829,824,782,968/123,389,810.39
  6. Step 6: Final answer
    x = 149,605,788.09

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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.