Home / 669,307,097.89-923,666,225.18-371,961,872.58

Finding the Fourth Proportional to 669,307,097.89, 923,666,225.18 and 371,961,872.58

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Solution

The fourth proportional to 669,307,097.89, 923,666,225.18 and 371,961,872.58 is: 513,319,849.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,307,097.89 : 923,666,225.18 = 371,961,872.58 : x
  2. Step 2: Convert to fraction form
    669,307,097.89/923,666,225.18 = 371,961,872.58/x
  3. Step 3: Cross multiply
    669,307,097.89x = 923,666,225.18 × 371,961,872.58
  4. Step 4: Simplify right side
    669,307,097.89x = 343,568,618,760,563,776
  5. Step 5: Solve for x
    x = 343,568,618,760,563,776/669,307,097.89
  6. Step 6: Final answer
    x = 513,319,849.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.