Home / 38,992,809.61-53,811,758.90-21,589,155.08

Finding the Fourth Proportional to 38,992,809.61, 53,811,758.90 and 21,589,155.08

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Solution

The fourth proportional to 38,992,809.61, 53,811,758.90 and 21,589,155.08 is: 29,793,965.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,992,809.61 : 53,811,758.90 = 21,589,155.08 : x
  2. Step 2: Convert to fraction form
    38,992,809.61/53,811,758.90 = 21,589,155.08/x
  3. Step 3: Cross multiply
    38,992,809.61x = 53,811,758.90 × 21,589,155.08
  4. Step 4: Simplify right side
    38,992,809.61x = 1,161,750,408,006,378.50
  5. Step 5: Solve for x
    x = 1,161,750,408,006,378.50/38,992,809.61
  6. Step 6: Final answer
    x = 29,793,965.08

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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.