Home / 153,765,003,862.35-212,195,631,525.49-91,965,572,449.52

Finding the Fourth Proportional to 153,765,003,862.35, 212,195,631,525.49 and 91,965,572,449.52

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Solution

The fourth proportional to 153,765,003,862.35, 212,195,631,525.49 and 91,965,572,449.52 is: 126,912,445,838.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,765,003,862.35 : 212,195,631,525.49 = 91,965,572,449.52 : x
  2. Step 2: Convert to fraction form
    153,765,003,862.35/212,195,631,525.49 = 91,965,572,449.52/x
  3. Step 3: Cross multiply
    153,765,003,862.35x = 212,195,631,525.49 × 91,965,572,449.52
  4. Step 4: Simplify right side
    153,765,003,862.35x = 19,514,692,724,528,036,970,496
  5. Step 5: Solve for x
    x = 19,514,692,724,528,036,970,496/153,765,003,862.35
  6. Step 6: Final answer
    x = 126,912,445,838.44

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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.