Home / 38,701,669.76-53,396,280.65-21,953,649.05

Finding the Fourth Proportional to 38,701,669.76, 53,396,280.65 and 21,953,649.05

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Solution

The fourth proportional to 38,701,669.76, 53,396,280.65 and 21,953,649.05 is: 30,289,215.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,701,669.76 : 53,396,280.65 = 21,953,649.05 : x
  2. Step 2: Convert to fraction form
    38,701,669.76/53,396,280.65 = 21,953,649.05/x
  3. Step 3: Cross multiply
    38,701,669.76x = 53,396,280.65 × 21,953,649.05
  4. Step 4: Simplify right side
    38,701,669.76x = 1,172,243,205,753,308.75
  5. Step 5: Solve for x
    x = 1,172,243,205,753,308.75/38,701,669.76
  6. Step 6: Final answer
    x = 30,289,215.25

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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.