Home / 15,273,261,970.05-21,078,936,384.68-9,251,590,689.90

Finding the Fourth Proportional to 15,273,261,970.05, 21,078,936,384.68 and 9,251,590,689.90

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Solution

The fourth proportional to 15,273,261,970.05, 21,078,936,384.68 and 9,251,590,689.90 is: 12,768,306,599.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,273,261,970.05 : 21,078,936,384.68 = 9,251,590,689.90 : x
  2. Step 2: Convert to fraction form
    15,273,261,970.05/21,078,936,384.68 = 9,251,590,689.90/x
  3. Step 3: Cross multiply
    15,273,261,970.05x = 21,078,936,384.68 × 9,251,590,689.90
  4. Step 4: Simplify right side
    15,273,261,970.05x = 195,013,691,609,499,860,992
  5. Step 5: Solve for x
    x = 195,013,691,609,499,860,992/15,273,261,970.05
  6. Step 6: Final answer
    x = 12,768,306,599.59

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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.