Home / 681,984,004.70-1,022,976,007.05-409,662,263.90

Finding the Fourth Proportional to 681,984,004.70, 1,022,976,007.05 and 409,662,263.90

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Solution

The fourth proportional to 681,984,004.70, 1,022,976,007.05 and 409,662,263.90 is: 614,493,395.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,984,004.70 : 1,022,976,007.05 = 409,662,263.90 : x
  2. Step 2: Convert to fraction form
    681,984,004.70/1,022,976,007.05 = 409,662,263.90/x
  3. Step 3: Cross multiply
    681,984,004.70x = 1,022,976,007.05 × 409,662,263.90
  4. Step 4: Simplify right side
    681,984,004.70x = 419,074,666,963,485,312
  5. Step 5: Solve for x
    x = 419,074,666,963,485,312/681,984,004.70
  6. Step 6: Final answer
    x = 614,493,395.85

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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.