Home / 38,636,869.80-53,317,768.86-21,233,193.96

Finding the Fourth Proportional to 38,636,869.80, 53,317,768.86 and 21,233,193.96

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Solution

The fourth proportional to 38,636,869.80, 53,317,768.86 and 21,233,193.96 is: 29,301,196.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,636,869.80 : 53,317,768.86 = 21,233,193.96 : x
  2. Step 2: Convert to fraction form
    38,636,869.80/53,317,768.86 = 21,233,193.96/x
  3. Step 3: Cross multiply
    38,636,869.80x = 53,317,768.86 × 21,233,193.96
  4. Step 4: Simplify right side
    38,636,869.80x = 1,132,106,527,718,828
  5. Step 5: Solve for x
    x = 1,132,106,527,718,828/38,636,869.80
  6. Step 6: Final answer
    x = 29,301,196.85

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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.