Home / 459,664,400.70-689,496,601.05-402,268,772.70

Finding the Fourth Proportional to 459,664,400.70, 689,496,601.05 and 402,268,772.70

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Solution

The fourth proportional to 459,664,400.70, 689,496,601.05 and 402,268,772.70 is: 603,403,159.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,664,400.70 : 689,496,601.05 = 402,268,772.70 : x
  2. Step 2: Convert to fraction form
    459,664,400.70/689,496,601.05 = 402,268,772.70/x
  3. Step 3: Cross multiply
    459,664,400.70x = 689,496,601.05 × 402,268,772.70
  4. Step 4: Simplify right side
    459,664,400.70x = 277,362,951,485,204,992
  5. Step 5: Solve for x
    x = 277,362,951,485,204,992/459,664,400.70
  6. Step 6: Final answer
    x = 603,403,159.05

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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.