Home / 123,390,003.88-170,178,918.65-108,473,435.06

Finding the Fourth Proportional to 123,390,003.88, 170,178,918.65 and 108,473,435.06

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Solution

The fourth proportional to 123,390,003.88, 170,178,918.65 and 108,473,435.06 is: 149,606,056.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,390,003.88 : 170,178,918.65 = 108,473,435.06 : x
  2. Step 2: Convert to fraction form
    123,390,003.88/170,178,918.65 = 108,473,435.06/x
  3. Step 3: Cross multiply
    123,390,003.88x = 170,178,918.65 × 108,473,435.06
  4. Step 4: Simplify right side
    123,390,003.88x = 18,459,891,880,761,800
  5. Step 5: Solve for x
    x = 18,459,891,880,761,800/123,390,003.88
  6. Step 6: Final answer
    x = 149,606,056.41

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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.