Home / 642,165,244-886,261,551.78-359,983,898.48

Finding the Fourth Proportional to 642,165,244, 886,261,551.78 and 359,983,898.48

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Solution

The fourth proportional to 642,165,244, 886,261,551.78 and 359,983,898.48 is: 496,818,990.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,165,244 : 886,261,551.78 = 359,983,898.48 : x
  2. Step 2: Convert to fraction form
    642,165,244/886,261,551.78 = 359,983,898.48/x
  3. Step 3: Cross multiply
    642,165,244x = 886,261,551.78 × 359,983,898.48
  4. Step 4: Simplify right side
    642,165,244x = 319,039,888,482,698,816
  5. Step 5: Solve for x
    x = 319,039,888,482,698,816/642,165,244
  6. Step 6: Final answer
    x = 496,818,990.85

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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.