Home / 143,296,675.20-197,749,464.96-81,417,095.04

Finding the Fourth Proportional to 143,296,675.20, 197,749,464.96 and 81,417,095.04

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Solution

The fourth proportional to 143,296,675.20, 197,749,464.96 and 81,417,095.04 is: 112,355,621.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,296,675.20 : 197,749,464.96 = 81,417,095.04 : x
  2. Step 2: Convert to fraction form
    143,296,675.20/197,749,464.96 = 81,417,095.04/x
  3. Step 3: Cross multiply
    143,296,675.20x = 197,749,464.96 × 81,417,095.04
  4. Step 4: Simplify right side
    143,296,675.20x = 16,100,186,982,757,472
  5. Step 5: Solve for x
    x = 16,100,186,982,757,472/143,296,675.20
  6. Step 6: Final answer
    x = 112,355,621.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.