Home / 13,420,453,929.50-18,520,246,830.05-7,479,878,885.66

Finding the Fourth Proportional to 13,420,453,929.50, 18,520,246,830.05 and 7,479,878,885.66

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Solution

The fourth proportional to 13,420,453,929.50, 18,520,246,830.05 and 7,479,878,885.66 is: 10,322,244,236.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,420,453,929.50 : 18,520,246,830.05 = 7,479,878,885.66 : x
  2. Step 2: Convert to fraction form
    13,420,453,929.50/18,520,246,830.05 = 7,479,878,885.66/x
  3. Step 3: Cross multiply
    13,420,453,929.50x = 18,520,246,830.05 × 7,479,878,885.66
  4. Step 4: Simplify right side
    13,420,453,929.50x = 138,529,203,221,172,518,912
  5. Step 5: Solve for x
    x = 138,529,203,221,172,518,912/13,420,453,929.50
  6. Step 6: Final answer
    x = 10,322,244,236.22

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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.