Home / 76,288,003.40-114,432,005.10-18,779,817.80

Finding the Fourth Proportional to 76,288,003.40, 114,432,005.10 and 18,779,817.80

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Solution

The fourth proportional to 76,288,003.40, 114,432,005.10 and 18,779,817.80 is: 28,169,726.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,288,003.40 : 114,432,005.10 = 18,779,817.80 : x
  2. Step 2: Convert to fraction form
    76,288,003.40/114,432,005.10 = 18,779,817.80/x
  3. Step 3: Cross multiply
    76,288,003.40x = 114,432,005.10 × 18,779,817.80
  4. Step 4: Simplify right side
    76,288,003.40x = 2,149,012,206,266,670.75
  5. Step 5: Solve for x
    x = 2,149,012,206,266,670.75/76,288,003.40
  6. Step 6: Final answer
    x = 28,169,726.70

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1.5x scale

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.