Home / 31,507,217,507.12-43,480,090,262.29-17,039,312,147.61

Finding the Fourth Proportional to 31,507,217,507.12, 43,480,090,262.29 and 17,039,312,147.61

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Solution

The fourth proportional to 31,507,217,507.12, 43,480,090,262.29 and 17,039,312,147.61 is: 23,514,321,123.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,507,217,507.12 : 43,480,090,262.29 = 17,039,312,147.61 : x
  2. Step 2: Convert to fraction form
    31,507,217,507.12/43,480,090,262.29 = 17,039,312,147.61/x
  3. Step 3: Cross multiply
    31,507,217,507.12x = 43,480,090,262.29 × 17,039,312,147.61
  4. Step 4: Simplify right side
    31,507,217,507.12x = 740,870,830,185,383,198,720
  5. Step 5: Solve for x
    x = 740,870,830,185,383,198,720/31,507,217,507.12
  6. Step 6: Final answer
    x = 23,514,321,123.98

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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.