Home / 13,420,453,929-18,520,246,829.35-7,479,878,885.16

Finding the Fourth Proportional to 13,420,453,929, 18,520,246,829.35 and 7,479,878,885.16

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Solution

The fourth proportional to 13,420,453,929, 18,520,246,829.35 and 7,479,878,885.16 is: 10,322,244,235.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,420,453,929 : 18,520,246,829.35 = 7,479,878,885.16 : x
  2. Step 2: Convert to fraction form
    13,420,453,929/18,520,246,829.35 = 7,479,878,885.16/x
  3. Step 3: Cross multiply
    13,420,453,929x = 18,520,246,829.35 × 7,479,878,885.16
  4. Step 4: Simplify right side
    13,420,453,929x = 138,529,203,206,806,487,040
  5. Step 5: Solve for x
    x = 138,529,203,206,806,487,040/13,420,453,929
  6. Step 6: Final answer
    x = 10,322,244,235.53

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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.