Home / 286,724,741,872.12-395,680,182,514.04-158,266,214,731.10

Finding the Fourth Proportional to 286,724,741,872.12, 395,680,182,514.04 and 158,266,214,731.10

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Solution

The fourth proportional to 286,724,741,872.12, 395,680,182,514.04 and 158,266,214,731.10 is: 218,407,397,707.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,724,741,872.12 : 395,680,182,514.04 = 158,266,214,731.10 : x
  2. Step 2: Convert to fraction form
    286,724,741,872.12/395,680,182,514.04 = 158,266,214,731.10/x
  3. Step 3: Cross multiply
    286,724,741,872.12x = 395,680,182,514.04 × 158,266,214,731.10
  4. Step 4: Simplify right side
    286,724,741,872.12x = 62,622,804,730,607,891,906,560
  5. Step 5: Solve for x
    x = 62,622,804,730,607,891,906,560/286,724,741,872.12
  6. Step 6: Final answer
    x = 218,407,397,707.37

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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.