Home / 149,228,767.44-205,936,516.04-86,542,032.51

Finding the Fourth Proportional to 149,228,767.44, 205,936,516.04 and 86,542,032.51

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Solution

The fourth proportional to 149,228,767.44, 205,936,516.04 and 86,542,032.51 is: 119,428,478.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,228,767.44 : 205,936,516.04 = 86,542,032.51 : x
  2. Step 2: Convert to fraction form
    149,228,767.44/205,936,516.04 = 86,542,032.51/x
  3. Step 3: Cross multiply
    149,228,767.44x = 205,936,516.04 × 86,542,032.51
  4. Step 4: Simplify right side
    149,228,767.44x = 17,822,164,665,697,108
  5. Step 5: Solve for x
    x = 17,822,164,665,697,108/149,228,767.44
  6. Step 6: Final answer
    x = 119,428,478.65

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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.