Home / 21,631,856,877.32-29,782,582,655.28-16,868,019,753.32

Finding the Fourth Proportional to 21,631,856,877.32, 29,782,582,655.28 and 16,868,019,753.32

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Solution

The fourth proportional to 21,631,856,877.32, 29,782,582,655.28 and 16,868,019,753.32 is: 23,223,766,474.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,631,856,877.32 : 29,782,582,655.28 = 16,868,019,753.32 : x
  2. Step 2: Convert to fraction form
    21,631,856,877.32/29,782,582,655.28 = 16,868,019,753.32/x
  3. Step 3: Cross multiply
    21,631,856,877.32x = 29,782,582,655.28 × 16,868,019,753.32
  4. Step 4: Simplify right side
    21,631,856,877.32x = 502,373,192,534,148,644,864
  5. Step 5: Solve for x
    x = 502,373,192,534,148,644,864/21,631,856,877.32
  6. Step 6: Final answer
    x = 23,223,766,474.75

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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.