Home / 321,570,006.10-482,355,009.15-199,125,999.70

Finding the Fourth Proportional to 321,570,006.10, 482,355,009.15 and 199,125,999.70

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Solution

The fourth proportional to 321,570,006.10, 482,355,009.15 and 199,125,999.70 is: 298,688,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,570,006.10 : 482,355,009.15 = 199,125,999.70 : x
  2. Step 2: Convert to fraction form
    321,570,006.10/482,355,009.15 = 199,125,999.70/x
  3. Step 3: Cross multiply
    321,570,006.10x = 482,355,009.15 × 199,125,999.70
  4. Step 4: Simplify right side
    321,570,006.10x = 96,049,423,407,296,384
  5. Step 5: Solve for x
    x = 96,049,423,407,296,384/321,570,006.10
  6. Step 6: Final answer
    x = 298,688,999.55

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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.