Home / 636,359,721.21-878,075,232.93-357,847,458.21

Finding the Fourth Proportional to 636,359,721.21, 878,075,232.93 and 357,847,458.21

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Solution

The fourth proportional to 636,359,721.21, 878,075,232.93 and 357,847,458.21 is: 493,772,593.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,359,721.21 : 878,075,232.93 = 357,847,458.21 : x
  2. Step 2: Convert to fraction form
    636,359,721.21/878,075,232.93 = 357,847,458.21/x
  3. Step 3: Cross multiply
    636,359,721.21x = 878,075,232.93 × 357,847,458.21
  4. Step 4: Simplify right side
    636,359,721.21x = 314,216,990,221,154,176
  5. Step 5: Solve for x
    x = 314,216,990,221,154,176/636,359,721.21
  6. Step 6: Final answer
    x = 493,772,593.94

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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.