Home / 103,616,812.62-142,988,350.83-57,206,223.18

Finding the Fourth Proportional to 103,616,812.62, 142,988,350.83 and 57,206,223.18

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Solution

The fourth proportional to 103,616,812.62, 142,988,350.83 and 57,206,223.18 is: 78,943,014.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,616,812.62 : 142,988,350.83 = 57,206,223.18 : x
  2. Step 2: Convert to fraction form
    103,616,812.62/142,988,350.83 = 57,206,223.18/x
  3. Step 3: Cross multiply
    103,616,812.62x = 142,988,350.83 × 57,206,223.18
  4. Step 4: Simplify right side
    103,616,812.62x = 8,179,823,509,721,119
  5. Step 5: Solve for x
    x = 8,179,823,509,721,119/103,616,812.62
  6. Step 6: Final answer
    x = 78,943,014.20

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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.