Home / 459,767,999.20-689,735,979.60-187,166,322.40

Finding the Fourth Proportional to 459,767,999.20, 689,735,979.60 and 187,166,322.40

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Solution

The fourth proportional to 459,767,999.20, 689,735,979.60 and 187,166,322.40 is: 280,783,671.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,767,999.20 : 689,735,979.60 = 187,166,322.40 : x
  2. Step 2: Convert to fraction form
    459,767,999.20/689,735,979.60 = 187,166,322.40/x
  3. Step 3: Cross multiply
    459,767,999.20x = 689,735,979.60 × 187,166,322.40
  4. Step 4: Simplify right side
    459,767,999.20x = 129,095,346,728,693,424
  5. Step 5: Solve for x
    x = 129,095,346,728,693,424/459,767,999.20
  6. Step 6: Final answer
    x = 280,783,671.23

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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.