Home / 780,764,150.07-1,171,148,962.55-198,498,458.34

Finding the Fourth Proportional to 780,764,150.07, 1,171,148,962.55 and 198,498,458.34

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Solution

The fourth proportional to 780,764,150.07, 1,171,148,962.55 and 198,498,458.34 is: 297,748,383.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,764,150.07 : 1,171,148,962.55 = 198,498,458.34 : x
  2. Step 2: Convert to fraction form
    780,764,150.07/1,171,148,962.55 = 198,498,458.34/x
  3. Step 3: Cross multiply
    780,764,150.07x = 1,171,148,962.55 × 198,498,458.34
  4. Step 4: Simplify right side
    780,764,150.07x = 232,471,263,551,672,928
  5. Step 5: Solve for x
    x = 232,471,263,551,672,928/780,764,150.07
  6. Step 6: Final answer
    x = 297,748,383.47

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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.