Home / 472,562,905.80-708,844,358.70-127,515,979.20

Finding the Fourth Proportional to 472,562,905.80, 708,844,358.70 and 127,515,979.20

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Solution

The fourth proportional to 472,562,905.80, 708,844,358.70 and 127,515,979.20 is: 191,273,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,562,905.80 : 708,844,358.70 = 127,515,979.20 : x
  2. Step 2: Convert to fraction form
    472,562,905.80/708,844,358.70 = 127,515,979.20/x
  3. Step 3: Cross multiply
    472,562,905.80x = 708,844,358.70 × 127,515,979.20
  4. Step 4: Simplify right side
    472,562,905.80x = 90,388,982,500,026,544
  5. Step 5: Solve for x
    x = 90,388,982,500,026,544/472,562,905.80
  6. Step 6: Final answer
    x = 191,273,968.80

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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.