Home / 472,395,914.70-708,593,872.05-429,313,764.30

Finding the Fourth Proportional to 472,395,914.70, 708,593,872.05 and 429,313,764.30

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Solution

The fourth proportional to 472,395,914.70, 708,593,872.05 and 429,313,764.30 is: 643,970,646.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,395,914.70 : 708,593,872.05 = 429,313,764.30 : x
  2. Step 2: Convert to fraction form
    472,395,914.70/708,593,872.05 = 429,313,764.30/x
  3. Step 3: Cross multiply
    472,395,914.70x = 708,593,872.05 × 429,313,764.30
  4. Step 4: Simplify right side
    472,395,914.70x = 304,209,102,569,698,048
  5. Step 5: Solve for x
    x = 304,209,102,569,698,048/472,395,914.70
  6. Step 6: Final answer
    x = 643,970,646.45

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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.