Home / 400,170,398.87-600,285,871.63-123,849,560.75

Finding the Fourth Proportional to 400,170,398.87, 600,285,871.63 and 123,849,560.75

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Solution

The fourth proportional to 400,170,398.87, 600,285,871.63 and 123,849,560.75 is: 185,783,710.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,170,398.87 : 600,285,871.63 = 123,849,560.75 : x
  2. Step 2: Convert to fraction form
    400,170,398.87/600,285,871.63 = 123,849,560.75/x
  3. Step 3: Cross multiply
    400,170,398.87x = 600,285,871.63 × 123,849,560.75
  4. Step 4: Simplify right side
    400,170,398.87x = 74,345,141,525,806,384
  5. Step 5: Solve for x
    x = 74,345,141,525,806,384/400,170,398.87
  6. Step 6: Final answer
    x = 185,783,710.48

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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.