Home / 172,320,006.40-258,480,009.60-165,517,561.60

Finding the Fourth Proportional to 172,320,006.40, 258,480,009.60 and 165,517,561.60

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Solution

The fourth proportional to 172,320,006.40, 258,480,009.60 and 165,517,561.60 is: 248,276,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,320,006.40 : 258,480,009.60 = 165,517,561.60 : x
  2. Step 2: Convert to fraction form
    172,320,006.40/258,480,009.60 = 165,517,561.60/x
  3. Step 3: Cross multiply
    172,320,006.40x = 258,480,009.60 × 165,517,561.60
  4. Step 4: Simplify right side
    172,320,006.40x = 42,782,980,911,336,592
  5. Step 5: Solve for x
    x = 42,782,980,911,336,592/172,320,006.40
  6. Step 6: Final answer
    x = 248,276,342.40

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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.