Home / 143,146,722.70-214,783,069.65-66,430,261.90

Finding the Fourth Proportional to 143,146,722.70, 214,783,069.65 and 66,430,261.90

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Solution

The fourth proportional to 143,146,722.70, 214,783,069.65 and 66,430,261.90 is: 99,674,622.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,146,722.70 : 214,783,069.65 = 66,430,261.90 : x
  2. Step 2: Convert to fraction form
    143,146,722.70/214,783,069.65 = 66,430,261.90/x
  3. Step 3: Cross multiply
    143,146,722.70x = 214,783,069.65 × 66,430,261.90
  4. Step 4: Simplify right side
    143,146,722.70x = 14,268,095,568,535,442
  5. Step 5: Solve for x
    x = 14,268,095,568,535,442/143,146,722.70
  6. Step 6: Final answer
    x = 99,674,622.65

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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.