Home / 76,288,010.40-114,432,015.60-18,779,824.80

Finding the Fourth Proportional to 76,288,010.40, 114,432,015.60 and 18,779,824.80

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Solution

The fourth proportional to 76,288,010.40, 114,432,015.60 and 18,779,824.80 is: 28,169,737.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,288,010.40 : 114,432,015.60 = 18,779,824.80 : x
  2. Step 2: Convert to fraction form
    76,288,010.40/114,432,015.60 = 18,779,824.80/x
  3. Step 3: Cross multiply
    76,288,010.40x = 114,432,015.60 × 18,779,824.80
  4. Step 4: Simplify right side
    76,288,010.40x = 2,149,013,204,478,866.75
  5. Step 5: Solve for x
    x = 2,149,013,204,478,866.75/76,288,010.40
  6. Step 6: Final answer
    x = 28,169,737.20

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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.