Home / 472,393,046.70-708,589,570.05-429,310,896.30

Finding the Fourth Proportional to 472,393,046.70, 708,589,570.05 and 429,310,896.30

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Solution

The fourth proportional to 472,393,046.70, 708,589,570.05 and 429,310,896.30 is: 643,966,344.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,046.70 : 708,589,570.05 = 429,310,896.30 : x
  2. Step 2: Convert to fraction form
    472,393,046.70/708,589,570.05 = 429,310,896.30/x
  3. Step 3: Cross multiply
    472,393,046.70x = 708,589,570.05 × 429,310,896.30
  4. Step 4: Simplify right side
    472,393,046.70x = 304,205,223,426,997,120
  5. Step 5: Solve for x
    x = 304,205,223,426,997,120/472,393,046.70
  6. Step 6: Final answer
    x = 643,966,344.45

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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.