Home / 638,481,962.22-881,030,235.87-360,006,891.18

Finding the Fourth Proportional to 638,481,962.22, 881,030,235.87 and 360,006,891.18

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Solution

The fourth proportional to 638,481,962.22, 881,030,235.87 and 360,006,891.18 is: 496,767,293.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,481,962.22 : 881,030,235.87 = 360,006,891.18 : x
  2. Step 2: Convert to fraction form
    638,481,962.22/881,030,235.87 = 360,006,891.18/x
  3. Step 3: Cross multiply
    638,481,962.22x = 881,030,235.87 × 360,006,891.18
  4. Step 4: Simplify right side
    638,481,962.22x = 317,176,956,251,140,800
  5. Step 5: Solve for x
    x = 317,176,956,251,140,800/638,481,962.22
  6. Step 6: Final answer
    x = 496,767,293.39

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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.