Home / 123,457,899.14-185,149,028.19-85,364,208.26

Finding the Fourth Proportional to 123,457,899.14, 185,149,028.19 and 85,364,208.26

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Solution

The fourth proportional to 123,457,899.14, 185,149,028.19 and 85,364,208.26 is: 128,020,161.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,457,899.14 : 185,149,028.19 = 85,364,208.26 : x
  2. Step 2: Convert to fraction form
    123,457,899.14/185,149,028.19 = 85,364,208.26/x
  3. Step 3: Cross multiply
    123,457,899.14x = 185,149,028.19 × 85,364,208.26
  4. Step 4: Simplify right side
    123,457,899.14x = 15,805,100,201,547,772
  5. Step 5: Solve for x
    x = 15,805,100,201,547,772/123,457,899.14
  6. Step 6: Final answer
    x = 128,020,161.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.