Home / 21,177,860,585.16-29,224,504,884.02-12,139,138,814.30

Finding the Fourth Proportional to 21,177,860,585.16, 29,224,504,884.02 and 12,139,138,814.30

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Solution

The fourth proportional to 21,177,860,585.16, 29,224,504,884.02 and 12,139,138,814.30 is: 16,751,471,195.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,177,860,585.16 : 29,224,504,884.02 = 12,139,138,814.30 : x
  2. Step 2: Convert to fraction form
    21,177,860,585.16/29,224,504,884.02 = 12,139,138,814.30/x
  3. Step 3: Cross multiply
    21,177,860,585.16x = 29,224,504,884.02 × 12,139,138,814.30
  4. Step 4: Simplify right side
    21,177,860,585.16x = 354,760,321,566,100,291,584
  5. Step 5: Solve for x
    x = 354,760,321,566,100,291,584/21,177,860,585.16
  6. Step 6: Final answer
    x = 16,751,471,195.10

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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.