Home / 151,609,659.28-209,221,329.94-81,995,039.80

Finding the Fourth Proportional to 151,609,659.28, 209,221,329.94 and 81,995,039.80

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Solution

The fourth proportional to 151,609,659.28, 209,221,329.94 and 81,995,039.80 is: 113,153,155.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,609,659.28 : 209,221,329.94 = 81,995,039.80 : x
  2. Step 2: Convert to fraction form
    151,609,659.28/209,221,329.94 = 81,995,039.80/x
  3. Step 3: Cross multiply
    151,609,659.28x = 209,221,329.94 × 81,995,039.80
  4. Step 4: Simplify right side
    151,609,659.28x = 17,155,111,275,439,230
  5. Step 5: Solve for x
    x = 17,155,111,275,439,230/151,609,659.28
  6. Step 6: Final answer
    x = 113,153,155.00

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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.