Home / 21,171,385,388.40-31,757,078,082.60-8,745,586,220.40

Finding the Fourth Proportional to 21,171,385,388.40, 31,757,078,082.60 and 8,745,586,220.40

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Solution

The fourth proportional to 21,171,385,388.40, 31,757,078,082.60 and 8,745,586,220.40 is: 13,118,379,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,171,385,388.40 : 31,757,078,082.60 = 8,745,586,220.40 : x
  2. Step 2: Convert to fraction form
    21,171,385,388.40/31,757,078,082.60 = 8,745,586,220.40/x
  3. Step 3: Cross multiply
    21,171,385,388.40x = 31,757,078,082.60 × 8,745,586,220.40
  4. Step 4: Simplify right side
    21,171,385,388.40x = 277,734,264,479,353,372,672
  5. Step 5: Solve for x
    x = 277,734,264,479,353,372,672/21,171,385,388.40
  6. Step 6: Final answer
    x = 13,118,379,330.60

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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.