Home / 369,932,468.20-510,506,628.34-221,253,586.68

Finding the Fourth Proportional to 369,932,468.20, 510,506,628.34 and 221,253,586.68

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Solution

The fourth proportional to 369,932,468.20, 510,506,628.34 and 221,253,586.68 is: 305,329,843.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,932,468.20 : 510,506,628.34 = 221,253,586.68 : x
  2. Step 2: Convert to fraction form
    369,932,468.20/510,506,628.34 = 221,253,586.68/x
  3. Step 3: Cross multiply
    369,932,468.20x = 510,506,628.34 × 221,253,586.68
  4. Step 4: Simplify right side
    369,932,468.20x = 112,951,422,544,138,736
  5. Step 5: Solve for x
    x = 112,951,422,544,138,736/369,932,468.20
  6. Step 6: Final answer
    x = 305,329,843.29

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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.