Home / 65,740,877.88-90,751,468.08-39,288,563.68

Finding the Fourth Proportional to 65,740,877.88, 90,751,468.08 and 39,288,563.68

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Solution

The fourth proportional to 65,740,877.88, 90,751,468.08 and 39,288,563.68 is: 54,235,582.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,740,877.88 : 90,751,468.08 = 39,288,563.68 : x
  2. Step 2: Convert to fraction form
    65,740,877.88/90,751,468.08 = 39,288,563.68/x
  3. Step 3: Cross multiply
    65,740,877.88x = 90,751,468.08 × 39,288,563.68
  4. Step 4: Simplify right side
    65,740,877.88x = 3,565,494,832,714,567
  5. Step 5: Solve for x
    x = 3,565,494,832,714,567/65,740,877.88
  6. Step 6: Final answer
    x = 54,235,582.91

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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.