Home / 15,288,741,878.04-21,099,118,365.18-8,514,560,420.64

Finding the Fourth Proportional to 15,288,741,878.04, 21,099,118,365.18 and 8,514,560,420.64

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Solution

The fourth proportional to 15,288,741,878.04, 21,099,118,365.18 and 8,514,560,420.64 is: 11,750,457,923.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,288,741,878.04 : 21,099,118,365.18 = 8,514,560,420.64 : x
  2. Step 2: Convert to fraction form
    15,288,741,878.04/21,099,118,365.18 = 8,514,560,420.64/x
  3. Step 3: Cross multiply
    15,288,741,878.04x = 21,099,118,365.18 × 8,514,560,420.64
  4. Step 4: Simplify right side
    15,288,741,878.04x = 179,649,718,142,560,174,080
  5. Step 5: Solve for x
    x = 179,649,718,142,560,174,080/15,288,741,878.04
  6. Step 6: Final answer
    x = 11,750,457,923.59

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Double scale
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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.