Home / 151,610,110.33-209,221,952.59-81,995,491.21

Finding the Fourth Proportional to 151,610,110.33, 209,221,952.59 and 81,995,491.21

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Solution

The fourth proportional to 151,610,110.33, 209,221,952.59 and 81,995,491.21 is: 113,153,778.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,610,110.33 : 209,221,952.59 = 81,995,491.21 : x
  2. Step 2: Convert to fraction form
    151,610,110.33/209,221,952.59 = 81,995,491.21/x
  3. Step 3: Cross multiply
    151,610,110.33x = 209,221,952.59 × 81,995,491.21
  4. Step 4: Simplify right side
    151,610,110.33x = 17,155,256,774,122,404
  5. Step 5: Solve for x
    x = 17,155,256,774,122,404/151,610,110.33
  6. Step 6: Final answer
    x = 113,153,778.05

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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.