Home / 472,395,385.20-708,593,077.80-199,766,152.20

Finding the Fourth Proportional to 472,395,385.20, 708,593,077.80 and 199,766,152.20

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Solution

The fourth proportional to 472,395,385.20, 708,593,077.80 and 199,766,152.20 is: 299,649,228.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,395,385.20 : 708,593,077.80 = 199,766,152.20 : x
  2. Step 2: Convert to fraction form
    472,395,385.20/708,593,077.80 = 199,766,152.20/x
  3. Step 3: Cross multiply
    472,395,385.20x = 708,593,077.80 × 199,766,152.20
  4. Step 4: Simplify right side
    472,395,385.20x = 141,552,912,627,661,216
  5. Step 5: Solve for x
    x = 141,552,912,627,661,216/472,395,385.20
  6. Step 6: Final answer
    x = 299,649,228.30

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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.