Home / 263,896,307.20-395,844,460.80-72,420,083.20

Finding the Fourth Proportional to 263,896,307.20, 395,844,460.80 and 72,420,083.20

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Solution

The fourth proportional to 263,896,307.20, 395,844,460.80 and 72,420,083.20 is: 108,630,124.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,896,307.20 : 395,844,460.80 = 72,420,083.20 : x
  2. Step 2: Convert to fraction form
    263,896,307.20/395,844,460.80 = 72,420,083.20/x
  3. Step 3: Cross multiply
    263,896,307.20x = 395,844,460.80 × 72,420,083.20
  4. Step 4: Simplify right side
    263,896,307.20x = 28,667,088,785,395,140
  5. Step 5: Solve for x
    x = 28,667,088,785,395,140/263,896,307.20
  6. Step 6: Final answer
    x = 108,630,124.80

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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.