Home / 1,411,014,490.68-2,116,384,972.38-428,449,666.83

Finding the Fourth Proportional to 1,411,014,490.68, 2,116,384,972.38 and 428,449,666.83

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Solution

The fourth proportional to 1,411,014,490.68, 2,116,384,972.38 and 428,449,666.83 is: 642,632,972.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,014,490.68 : 2,116,384,972.38 = 428,449,666.83 : x
  2. Step 2: Convert to fraction form
    1,411,014,490.68/2,116,384,972.38 = 428,449,666.83/x
  3. Step 3: Cross multiply
    1,411,014,490.68x = 2,116,384,972.38 × 428,449,666.83
  4. Step 4: Simplify right side
    1,411,014,490.68x = 906,764,436,300,229,760
  5. Step 5: Solve for x
    x = 906,764,436,300,229,760/1,411,014,490.68
  6. Step 6: Final answer
    x = 642,632,972.44

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1.5x scale

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.