Home / 461,154,557.34-691,176,076.56-211,815,744.31

Finding the Fourth Proportional to 461,154,557.34, 691,176,076.56 and 211,815,744.31

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Solution

The fourth proportional to 461,154,557.34, 691,176,076.56 and 211,815,744.31 is: 317,468,347.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,154,557.34 : 691,176,076.56 = 211,815,744.31 : x
  2. Step 2: Convert to fraction form
    461,154,557.34/691,176,076.56 = 211,815,744.31/x
  3. Step 3: Cross multiply
    461,154,557.34x = 691,176,076.56 × 211,815,744.31
  4. Step 4: Simplify right side
    461,154,557.34x = 146,401,975,108,041,920
  5. Step 5: Solve for x
    x = 146,401,975,108,041,920/461,154,557.34
  6. Step 6: Final answer
    x = 317,468,347.17

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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.