Home / 619,817,508.28-855,320,564.10-355,309,869.88

Finding the Fourth Proportional to 619,817,508.28, 855,320,564.10 and 355,309,869.88

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Solution

The fourth proportional to 619,817,508.28, 855,320,564.10 and 355,309,869.88 is: 490,311,800.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,817,508.28 : 855,320,564.10 = 355,309,869.88 : x
  2. Step 2: Convert to fraction form
    619,817,508.28/855,320,564.10 = 355,309,869.88/x
  3. Step 3: Cross multiply
    619,817,508.28x = 855,320,564.10 × 355,309,869.88
  4. Step 4: Simplify right side
    619,817,508.28x = 303,903,838,336,059,200
  5. Step 5: Solve for x
    x = 303,903,838,336,059,200/619,817,508.28
  6. Step 6: Final answer
    x = 490,311,800.29

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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.