Home / 499,062,290.76-688,659,743.15-276,039,172.33

Finding the Fourth Proportional to 499,062,290.76, 688,659,743.15 and 276,039,172.33

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Solution

The fourth proportional to 499,062,290.76, 688,659,743.15 and 276,039,172.33 is: 380,908,493.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,062,290.76 : 688,659,743.15 = 276,039,172.33 : x
  2. Step 2: Convert to fraction form
    499,062,290.76/688,659,743.15 = 276,039,172.33/x
  3. Step 3: Cross multiply
    499,062,290.76x = 688,659,743.15 × 276,039,172.33
  4. Step 4: Simplify right side
    499,062,290.76x = 190,097,065,516,116,384
  5. Step 5: Solve for x
    x = 190,097,065,516,116,384/499,062,290.76
  6. Step 6: Final answer
    x = 380,908,493.86

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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.