Home / 64,786,003-89,405,746.32-38,682,801.88

Finding the Fourth Proportional to 64,786,003, 89,405,746.32 and 38,682,801.88

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Solution

The fourth proportional to 64,786,003, 89,405,746.32 and 38,682,801.88 is: 53,382,900.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,786,003 : 89,405,746.32 = 38,682,801.88 : x
  2. Step 2: Convert to fraction form
    64,786,003/89,405,746.32 = 38,682,801.88/x
  3. Step 3: Cross multiply
    64,786,003x = 89,405,746.32 × 38,682,801.88
  4. Step 4: Simplify right side
    64,786,003x = 3,458,464,771,830,099
  5. Step 5: Solve for x
    x = 3,458,464,771,830,099/64,786,003
  6. Step 6: Final answer
    x = 53,382,900.81

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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.