Home / 80,457,688.65-120,686,532.98-19,873,414.65

Finding the Fourth Proportional to 80,457,688.65, 120,686,532.98 and 19,873,414.65

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Solution

The fourth proportional to 80,457,688.65, 120,686,532.98 and 19,873,414.65 is: 29,810,121.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,457,688.65 : 120,686,532.98 = 19,873,414.65 : x
  2. Step 2: Convert to fraction form
    80,457,688.65/120,686,532.98 = 19,873,414.65/x
  3. Step 3: Cross multiply
    80,457,688.65x = 120,686,532.98 × 19,873,414.65
  4. Step 4: Simplify right side
    80,457,688.65x = 2,398,453,512,483,073
  5. Step 5: Solve for x
    x = 2,398,453,512,483,073/80,457,688.65
  6. Step 6: Final answer
    x = 29,810,121.98

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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.