Home / 153,765,003,855.01-212,195,631,515.38-91,965,572,442.21

Finding the Fourth Proportional to 153,765,003,855.01, 212,195,631,515.38 and 91,965,572,442.21

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Solution

The fourth proportional to 153,765,003,855.01, 212,195,631,515.38 and 91,965,572,442.21 is: 126,912,445,828.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,765,003,855.01 : 212,195,631,515.38 = 91,965,572,442.21 : x
  2. Step 2: Convert to fraction form
    153,765,003,855.01/212,195,631,515.38 = 91,965,572,442.21/x
  3. Step 3: Cross multiply
    153,765,003,855.01x = 212,195,631,515.38 × 91,965,572,442.21
  4. Step 4: Simplify right side
    153,765,003,855.01x = 19,514,692,722,048,603,521,024
  5. Step 5: Solve for x
    x = 19,514,692,722,048,603,521,024/153,765,003,855.01
  6. Step 6: Final answer
    x = 126,912,445,828.37

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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.