Home / 38,788,553.57-53,528,563.17-21,385,521.56

Finding the Fourth Proportional to 38,788,553.57, 53,528,563.17 and 21,385,521.56

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Solution

The fourth proportional to 38,788,553.57, 53,528,563.17 and 21,385,521.56 is: 29,512,217.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,788,553.57 : 53,528,563.17 = 21,385,521.56 : x
  2. Step 2: Convert to fraction form
    38,788,553.57/53,528,563.17 = 21,385,521.56/x
  3. Step 3: Cross multiply
    38,788,553.57x = 53,528,563.17 × 21,385,521.56
  4. Step 4: Simplify right side
    38,788,553.57x = 1,144,736,241,881,678.50
  5. Step 5: Solve for x
    x = 1,144,736,241,881,678.50/38,788,553.57
  6. Step 6: Final answer
    x = 29,512,217.82

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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.