Home / 123,389,813.38-170,178,655.74-108,473,243.62

Finding the Fourth Proportional to 123,389,813.38, 170,178,655.74 and 108,473,243.62

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Solution

The fourth proportional to 123,389,813.38, 170,178,655.74 and 108,473,243.62 is: 149,605,792.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,389,813.38 : 170,178,655.74 = 108,473,243.62 : x
  2. Step 2: Convert to fraction form
    123,389,813.38/170,178,655.74 = 108,473,243.62/x
  3. Step 3: Cross multiply
    123,389,813.38x = 170,178,655.74 × 108,473,243.62
  4. Step 4: Simplify right side
    123,389,813.38x = 18,459,830,783,009,132
  5. Step 5: Solve for x
    x = 18,459,830,783,009,132/123,389,813.38
  6. Step 6: Final answer
    x = 149,605,792.22

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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.