Home / 76,099,863.60-114,065,814.60-42,045,649.20

Finding the Fourth Proportional to 76,099,863.60, 114,065,814.60 and 42,045,649.20

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Solution

The fourth proportional to 76,099,863.60, 114,065,814.60 and 42,045,649.20 is: 63,022,073.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,099,863.60 : 114,065,814.60 = 42,045,649.20 : x
  2. Step 2: Convert to fraction form
    76,099,863.60/114,065,814.60 = 42,045,649.20/x
  3. Step 3: Cross multiply
    76,099,863.60x = 114,065,814.60 × 42,045,649.20
  4. Step 4: Simplify right side
    76,099,863.60x = 4,795,971,226,383,838
  5. Step 5: Solve for x
    x = 4,795,971,226,383,838/76,099,863.60
  6. Step 6: Final answer
    x = 63,022,073.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.