Home / 472,393,089.80-708,589,634.70-424,775,976.20

Finding the Fourth Proportional to 472,393,089.80, 708,589,634.70 and 424,775,976.20

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Solution

The fourth proportional to 472,393,089.80, 708,589,634.70 and 424,775,976.20 is: 637,163,964.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,089.80 : 708,589,634.70 = 424,775,976.20 : x
  2. Step 2: Convert to fraction form
    472,393,089.80/708,589,634.70 = 424,775,976.20/x
  3. Step 3: Cross multiply
    472,393,089.80x = 708,589,634.70 × 424,775,976.20
  4. Step 4: Simplify right side
    472,393,089.80x = 300,991,853,804,893,888
  5. Step 5: Solve for x
    x = 300,991,853,804,893,888/472,393,089.80
  6. Step 6: Final answer
    x = 637,163,964.30

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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.