Home / 499,062,396.59-688,659,888.79-276,039,278.36

Finding the Fourth Proportional to 499,062,396.59, 688,659,888.79 and 276,039,278.36

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Solution

The fourth proportional to 499,062,396.59, 688,659,888.79 and 276,039,278.36 is: 380,908,639.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,062,396.59 : 688,659,888.79 = 276,039,278.36 : x
  2. Step 2: Convert to fraction form
    499,062,396.59/688,659,888.79 = 276,039,278.36/x
  3. Step 3: Cross multiply
    499,062,396.59x = 688,659,888.79 × 276,039,278.36
  4. Step 4: Simplify right side
    499,062,396.59x = 190,097,178,737,069,440
  5. Step 5: Solve for x
    x = 190,097,178,737,069,440/499,062,396.59
  6. Step 6: Final answer
    x = 380,908,639.95

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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.