Home / 153,765,003,856.01-212,195,631,516.76-91,965,572,443.21

Finding the Fourth Proportional to 153,765,003,856.01, 212,195,631,516.76 and 91,965,572,443.21

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Solution

The fourth proportional to 153,765,003,856.01, 212,195,631,516.76 and 91,965,572,443.21 is: 126,912,445,829.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,765,003,856.01 : 212,195,631,516.76 = 91,965,572,443.21 : x
  2. Step 2: Convert to fraction form
    153,765,003,856.01/212,195,631,516.76 = 91,965,572,443.21/x
  3. Step 3: Cross multiply
    153,765,003,856.01x = 212,195,631,516.76 × 91,965,572,443.21
  4. Step 4: Simplify right side
    153,765,003,856.01x = 19,514,692,722,387,289,374,720
  5. Step 5: Solve for x
    x = 19,514,692,722,387,289,374,720/153,765,003,856.01
  6. Step 6: Final answer
    x = 126,912,445,829.75

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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.