Home / 12,815,635,915.32-19,228,978,202.13-6,919,024,328.34

Finding the Fourth Proportional to 12,815,635,915.32, 19,228,978,202.13 and 6,919,024,328.34

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Solution

The fourth proportional to 12,815,635,915.32, 19,228,978,202.13 and 6,919,024,328.34 is: 10,381,519,018.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,815,635,915.32 : 19,228,978,202.13 = 6,919,024,328.34 : x
  2. Step 2: Convert to fraction form
    12,815,635,915.32/19,228,978,202.13 = 6,919,024,328.34/x
  3. Step 3: Cross multiply
    12,815,635,915.32x = 19,228,978,202.13 × 6,919,024,328.34
  4. Step 4: Simplify right side
    12,815,635,915.32x = 133,045,767,989,657,026,560
  5. Step 5: Solve for x
    x = 133,045,767,989,657,026,560/12,815,635,915.32
  6. Step 6: Final answer
    x = 10,381,519,018.55

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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.