Home / 515,591,754.81-773,380,059.66-127,414,574.75

Finding the Fourth Proportional to 515,591,754.81, 773,380,059.66 and 127,414,574.75

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Solution

The fourth proportional to 515,591,754.81, 773,380,059.66 and 127,414,574.75 is: 191,119,990.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,591,754.81 : 773,380,059.66 = 127,414,574.75 : x
  2. Step 2: Convert to fraction form
    515,591,754.81/773,380,059.66 = 127,414,574.75/x
  3. Step 3: Cross multiply
    515,591,754.81x = 773,380,059.66 × 127,414,574.75
  4. Step 4: Simplify right side
    515,591,754.81x = 98,539,891,417,841,632
  5. Step 5: Solve for x
    x = 98,539,891,417,841,632/515,591,754.81
  6. Step 6: Final answer
    x = 191,119,990.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.