Home / 66,305,234.70-99,457,852.05-20,867,029.20

Finding the Fourth Proportional to 66,305,234.70, 99,457,852.05 and 20,867,029.20

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Solution

The fourth proportional to 66,305,234.70, 99,457,852.05 and 20,867,029.20 is: 31,300,543.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,305,234.70 : 99,457,852.05 = 20,867,029.20 : x
  2. Step 2: Convert to fraction form
    66,305,234.70/99,457,852.05 = 20,867,029.20/x
  3. Step 3: Cross multiply
    66,305,234.70x = 99,457,852.05 × 20,867,029.20
  4. Step 4: Simplify right side
    66,305,234.70x = 2,075,389,902,896,629.75
  5. Step 5: Solve for x
    x = 2,075,389,902,896,629.75/66,305,234.70
  6. Step 6: Final answer
    x = 31,300,543.80

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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.