Home / 210,017,917.80-314,932,398.30-80,582,509.80

Finding the Fourth Proportional to 210,017,917.80, 314,932,398.30 and 80,582,509.80

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Solution

The fourth proportional to 210,017,917.80, 314,932,398.30 and 80,582,509.80 is: 120,837,513.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,017,917.80 : 314,932,398.30 = 80,582,509.80 : x
  2. Step 2: Convert to fraction form
    210,017,917.80/314,932,398.30 = 80,582,509.80/x
  3. Step 3: Cross multiply
    210,017,917.80x = 314,932,398.30 × 80,582,509.80
  4. Step 4: Simplify right side
    210,017,917.80x = 25,378,043,072,347,252
  5. Step 5: Solve for x
    x = 25,378,043,072,347,252/210,017,917.80
  6. Step 6: Final answer
    x = 120,837,513.95

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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.