Home / 16,380,728,619.44-22,621,017,743.08-15,488,316,970.96

Finding the Fourth Proportional to 16,380,728,619.44, 22,621,017,743.08 and 15,488,316,970.96

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Solution

The fourth proportional to 16,380,728,619.44, 22,621,017,743.08 and 15,488,316,970.96 is: 21,388,639,122.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,380,728,619.44 : 22,621,017,743.08 = 15,488,316,970.96 : x
  2. Step 2: Convert to fraction form
    16,380,728,619.44/22,621,017,743.08 = 15,488,316,970.96/x
  3. Step 3: Cross multiply
    16,380,728,619.44x = 22,621,017,743.08 × 15,488,316,970.96
  4. Step 4: Simplify right side
    16,380,728,619.44x = 350,361,493,010,533,253,120
  5. Step 5: Solve for x
    x = 350,361,493,010,533,253,120/16,380,728,619.44
  6. Step 6: Final answer
    x = 21,388,639,122.85

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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.