Home / 38,420,628.64-53,021,732.15-21,016,575.59

Finding the Fourth Proportional to 38,420,628.64, 53,021,732.15 and 21,016,575.59

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Solution

The fourth proportional to 38,420,628.64, 53,021,732.15 and 21,016,575.59 is: 29,003,566.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,420,628.64 : 53,021,732.15 = 21,016,575.59 : x
  2. Step 2: Convert to fraction form
    38,420,628.64/53,021,732.15 = 21,016,575.59/x
  3. Step 3: Cross multiply
    38,420,628.64x = 53,021,732.15 × 21,016,575.59
  4. Step 4: Simplify right side
    38,420,628.64x = 1,114,335,241,430,641.12
  5. Step 5: Solve for x
    x = 1,114,335,241,430,641.12/38,420,628.64
  6. Step 6: Final answer
    x = 29,003,566.08

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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.