Home / 818,172,007.18-1,227,258,021.17-196,387,237.60

Finding the Fourth Proportional to 818,172,007.18, 1,227,258,021.17 and 196,387,237.60

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Solution

The fourth proportional to 818,172,007.18, 1,227,258,021.17 and 196,387,237.60 is: 294,580,858.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,172,007.18 : 1,227,258,021.17 = 196,387,237.60 : x
  2. Step 2: Convert to fraction form
    818,172,007.18/1,227,258,021.17 = 196,387,237.60/x
  3. Step 3: Cross multiply
    818,172,007.18x = 1,227,258,021.17 × 196,387,237.60
  4. Step 4: Simplify right side
    818,172,007.18x = 241,017,812,596,891,552
  5. Step 5: Solve for x
    x = 241,017,812,596,891,552/818,172,007.18
  6. Step 6: Final answer
    x = 294,580,858.89

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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.