Home / 38,765,113.18-53,496,214.96-21,362,081.20

Finding the Fourth Proportional to 38,765,113.18, 53,496,214.96 and 21,362,081.20

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Solution

The fourth proportional to 38,765,113.18, 53,496,214.96 and 21,362,081.20 is: 29,479,869.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,765,113.18 : 53,496,214.96 = 21,362,081.20 : x
  2. Step 2: Convert to fraction form
    38,765,113.18/53,496,214.96 = 21,362,081.20/x
  3. Step 3: Cross multiply
    38,765,113.18x = 53,496,214.96 × 21,362,081.20
  4. Step 4: Simplify right side
    38,765,113.18x = 1,142,790,487,868,174.75
  5. Step 5: Solve for x
    x = 1,142,790,487,868,174.75/38,765,113.18
  6. Step 6: Final answer
    x = 29,479,869.76

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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.