Home / 42,972,297.18-64,460,223.45-12,680,160.54

Finding the Fourth Proportional to 42,972,297.18, 64,460,223.45 and 12,680,160.54

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Solution

The fourth proportional to 42,972,297.18, 64,460,223.45 and 12,680,160.54 is: 19,020,765.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,972,297.18 : 64,460,223.45 = 12,680,160.54 : x
  2. Step 2: Convert to fraction form
    42,972,297.18/64,460,223.45 = 12,680,160.54/x
  3. Step 3: Cross multiply
    42,972,297.18x = 64,460,223.45 × 12,680,160.54
  4. Step 4: Simplify right side
    42,972,297.18x = 817,365,981,790,272.62
  5. Step 5: Solve for x
    x = 817,365,981,790,272.62/42,972,297.18
  6. Step 6: Final answer
    x = 19,020,765.36

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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.