Home / 459,664,607.20-689,496,910.80-402,268,979.20

Finding the Fourth Proportional to 459,664,607.20, 689,496,910.80 and 402,268,979.20

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Solution

The fourth proportional to 459,664,607.20, 689,496,910.80 and 402,268,979.20 is: 603,403,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,664,607.20 : 689,496,910.80 = 402,268,979.20 : x
  2. Step 2: Convert to fraction form
    459,664,607.20/689,496,910.80 = 402,268,979.20/x
  3. Step 3: Cross multiply
    459,664,607.20x = 689,496,910.80 × 402,268,979.20
  4. Step 4: Simplify right side
    459,664,607.20x = 277,363,218,469,069,440
  5. Step 5: Solve for x
    x = 277,363,218,469,069,440/459,664,607.20
  6. Step 6: Final answer
    x = 603,403,468.80

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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.