Home / 64,786,070.88-89,405,840.40-38,682,869.76

Finding the Fourth Proportional to 64,786,070.88, 89,405,840.40 and 38,682,869.76

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Solution

The fourth proportional to 64,786,070.88, 89,405,840.40 and 38,682,869.76 is: 53,382,994.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,786,070.88 : 89,405,840.40 = 38,682,869.76 : x
  2. Step 2: Convert to fraction form
    64,786,070.88/89,405,840.40 = 38,682,869.76/x
  3. Step 3: Cross multiply
    64,786,070.88x = 89,405,840.40 × 38,682,869.76
  4. Step 4: Simplify right side
    64,786,070.88x = 3,458,474,479,976,546.50
  5. Step 5: Solve for x
    x = 3,458,474,479,976,546.50/64,786,070.88
  6. Step 6: Final answer
    x = 53,382,994.72

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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.