Home / 472,395,931.20-708,593,896.80-199,766,698.20

Finding the Fourth Proportional to 472,395,931.20, 708,593,896.80 and 199,766,698.20

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Solution

The fourth proportional to 472,395,931.20, 708,593,896.80 and 199,766,698.20 is: 299,650,047.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,395,931.20 : 708,593,896.80 = 199,766,698.20 : x
  2. Step 2: Convert to fraction form
    472,395,931.20/708,593,896.80 = 199,766,698.20/x
  3. Step 3: Cross multiply
    472,395,931.20x = 708,593,896.80 × 199,766,698.20
  4. Step 4: Simplify right side
    472,395,931.20x = 141,553,463,128,407,520
  5. Step 5: Solve for x
    x = 141,553,463,128,407,520/472,395,931.20
  6. Step 6: Final answer
    x = 299,650,047.30

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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.