Home / 151,610,108.70-209,221,950.34-81,995,489.58

Finding the Fourth Proportional to 151,610,108.70, 209,221,950.34 and 81,995,489.58

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Solution

The fourth proportional to 151,610,108.70, 209,221,950.34 and 81,995,489.58 is: 113,153,775.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,610,108.70 : 209,221,950.34 = 81,995,489.58 : x
  2. Step 2: Convert to fraction form
    151,610,108.70/209,221,950.34 = 81,995,489.58/x
  3. Step 3: Cross multiply
    151,610,108.70x = 209,221,950.34 × 81,995,489.58
  4. Step 4: Simplify right side
    151,610,108.70x = 17,155,256,248,720,950
  5. Step 5: Solve for x
    x = 17,155,256,248,720,950/151,610,108.70
  6. Step 6: Final answer
    x = 113,153,775.80

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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.