Home / 15,635,821,871.79-21,577,448,086.90-8,499,235,683.87

Finding the Fourth Proportional to 15,635,821,871.79, 21,577,448,086.90 and 8,499,235,683.87

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Solution

The fourth proportional to 15,635,821,871.79, 21,577,448,086.90 and 8,499,235,683.87 is: 11,728,952,801.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,635,821,871.79 : 21,577,448,086.90 = 8,499,235,683.87 : x
  2. Step 2: Convert to fraction form
    15,635,821,871.79/21,577,448,086.90 = 8,499,235,683.87/x
  3. Step 3: Cross multiply
    15,635,821,871.79x = 21,577,448,086.90 × 8,499,235,683.87
  4. Step 4: Simplify right side
    15,635,821,871.79x = 183,391,816,747,007,442,944
  5. Step 5: Solve for x
    x = 183,391,816,747,007,442,944/15,635,821,871.79
  6. Step 6: Final answer
    x = 11,728,952,801.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.