Home / 472,392,010.80-708,588,016.20-407,768,785.20

Finding the Fourth Proportional to 472,392,010.80, 708,588,016.20 and 407,768,785.20

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Solution

The fourth proportional to 472,392,010.80, 708,588,016.20 and 407,768,785.20 is: 611,653,177.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,010.80 : 708,588,016.20 = 407,768,785.20 : x
  2. Step 2: Convert to fraction form
    472,392,010.80/708,588,016.20 = 407,768,785.20/x
  3. Step 3: Cross multiply
    472,392,010.80x = 708,588,016.20 × 407,768,785.20
  4. Step 4: Simplify right side
    472,392,010.80x = 288,940,074,573,151,936
  5. Step 5: Solve for x
    x = 288,940,074,573,151,936/472,392,010.80
  6. Step 6: Final answer
    x = 611,653,177.80

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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.