Home / 38,639,341.72-53,323,491.54-21,235,370.68

Finding the Fourth Proportional to 38,639,341.72, 53,323,491.54 and 21,235,370.68

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Solution

The fourth proportional to 38,639,341.72, 53,323,491.54 and 21,235,370.68 is: 29,305,471.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,639,341.72 : 53,323,491.54 = 21,235,370.68 : x
  2. Step 2: Convert to fraction form
    38,639,341.72/53,323,491.54 = 21,235,370.68/x
  3. Step 3: Cross multiply
    38,639,341.72x = 53,323,491.54 × 21,235,370.68
  4. Step 4: Simplify right side
    38,639,341.72x = 1,132,344,108,803,744
  5. Step 5: Solve for x
    x = 1,132,344,108,803,744/38,639,341.72
  6. Step 6: Final answer
    x = 29,305,471.01

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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.