Home / 636,359,712.59-878,075,221.03-357,847,449.59

Finding the Fourth Proportional to 636,359,712.59, 878,075,221.03 and 357,847,449.59

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Solution

The fourth proportional to 636,359,712.59, 878,075,221.03 and 357,847,449.59 is: 493,772,582.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,359,712.59 : 878,075,221.03 = 357,847,449.59 : x
  2. Step 2: Convert to fraction form
    636,359,712.59/878,075,221.03 = 357,847,449.59/x
  3. Step 3: Cross multiply
    636,359,712.59x = 878,075,221.03 × 357,847,449.59
  4. Step 4: Simplify right side
    636,359,712.59x = 314,216,978,388,476,032
  5. Step 5: Solve for x
    x = 314,216,978,388,476,032/636,359,712.59
  6. Step 6: Final answer
    x = 493,772,582.04

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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.