Home / 69,721,116.34-104,594,443.38-28,758,209.68

Finding the Fourth Proportional to 69,721,116.34, 104,594,443.38 and 28,758,209.68

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Solution

The fourth proportional to 69,721,116.34, 104,594,443.38 and 28,758,209.68 is: 43,142,581.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,721,116.34 : 104,594,443.38 = 28,758,209.68 : x
  2. Step 2: Convert to fraction form
    69,721,116.34/104,594,443.38 = 28,758,209.68/x
  3. Step 3: Cross multiply
    69,721,116.34x = 104,594,443.38 × 28,758,209.68
  4. Step 4: Simplify right side
    69,721,116.34x = 3,007,948,934,084,928
  5. Step 5: Solve for x
    x = 3,007,948,934,084,928/69,721,116.34
  6. Step 6: Final answer
    x = 43,142,581.36

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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.