Home / 143,146,729.70-214,783,080.15-66,430,268.90

Finding the Fourth Proportional to 143,146,729.70, 214,783,080.15 and 66,430,268.90

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Solution

The fourth proportional to 143,146,729.70, 214,783,080.15 and 66,430,268.90 is: 99,674,633.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,146,729.70 : 214,783,080.15 = 66,430,268.90 : x
  2. Step 2: Convert to fraction form
    143,146,729.70/214,783,080.15 = 66,430,268.90/x
  3. Step 3: Cross multiply
    143,146,729.70x = 214,783,080.15 × 66,430,268.90
  4. Step 4: Simplify right side
    143,146,729.70x = 14,268,097,769,534,752
  5. Step 5: Solve for x
    x = 14,268,097,769,534,752/143,146,729.70
  6. Step 6: Final answer
    x = 99,674,633.15

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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.