Home / 1,392,310,974.71-2,088,674,099.96-459,732,329.21

Finding the Fourth Proportional to 1,392,310,974.71, 2,088,674,099.96 and 459,732,329.21

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Solution

The fourth proportional to 1,392,310,974.71, 2,088,674,099.96 and 459,732,329.21 is: 689,667,054.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,310,974.71 : 2,088,674,099.96 = 459,732,329.21 : x
  2. Step 2: Convert to fraction form
    1,392,310,974.71/2,088,674,099.96 = 459,732,329.21/x
  3. Step 3: Cross multiply
    1,392,310,974.71x = 2,088,674,099.96 × 459,732,329.21
  4. Step 4: Simplify right side
    1,392,310,974.71x = 960,231,008,938,134,144
  5. Step 5: Solve for x
    x = 960,231,008,938,134,144/1,392,310,974.71
  6. Step 6: Final answer
    x = 689,667,054.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.