Home / 125,213,953.87-172,769,380.77-72,289,744.42

Finding the Fourth Proportional to 125,213,953.87, 172,769,380.77 and 72,289,744.42

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Solution

The fourth proportional to 125,213,953.87, 172,769,380.77 and 72,289,744.42 is: 99,744,908.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,213,953.87 : 172,769,380.77 = 72,289,744.42 : x
  2. Step 2: Convert to fraction form
    125,213,953.87/172,769,380.77 = 72,289,744.42/x
  3. Step 3: Cross multiply
    125,213,953.87x = 172,769,380.77 × 72,289,744.42
  4. Step 4: Simplify right side
    125,213,953.87x = 12,489,454,378,980,184
  5. Step 5: Solve for x
    x = 12,489,454,378,980,184/125,213,953.87
  6. Step 6: Final answer
    x = 99,744,908.56

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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.