Home / 645,112,812.09-967,666,456.34-178,772,904.02

Finding the Fourth Proportional to 645,112,812.09, 967,666,456.34 and 178,772,904.02

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Solution

The fourth proportional to 645,112,812.09, 967,666,456.34 and 178,772,904.02 is: 268,158,590.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,112,812.09 : 967,666,456.34 = 178,772,904.02 : x
  2. Step 2: Convert to fraction form
    645,112,812.09/967,666,456.34 = 178,772,904.02/x
  3. Step 3: Cross multiply
    645,112,812.09x = 967,666,456.34 × 178,772,904.02
  4. Step 4: Simplify right side
    645,112,812.09x = 172,992,542,525,850,112
  5. Step 5: Solve for x
    x = 172,992,542,525,850,112/645,112,812.09
  6. Step 6: Final answer
    x = 268,158,590.69

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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.