Home / 1,215,179,816.28-1,677,217,921.86-738,768,954.02

Finding the Fourth Proportional to 1,215,179,816.28, 1,677,217,921.86 and 738,768,954.02

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Solution

The fourth proportional to 1,215,179,816.28, 1,677,217,921.86 and 738,768,954.02 is: 1,019,665,166.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,179,816.28 : 1,677,217,921.86 = 738,768,954.02 : x
  2. Step 2: Convert to fraction form
    1,215,179,816.28/1,677,217,921.86 = 738,768,954.02/x
  3. Step 3: Cross multiply
    1,215,179,816.28x = 1,677,217,921.86 × 738,768,954.02
  4. Step 4: Simplify right side
    1,215,179,816.28x = 1,239,076,529,802,150,400
  5. Step 5: Solve for x
    x = 1,239,076,529,802,150,400/1,215,179,816.28
  6. Step 6: Final answer
    x = 1,019,665,166.59

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Double scale
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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.