Home / 862,815,005.20-1,294,222,507.80-719,325,935.20

Finding the Fourth Proportional to 862,815,005.20, 1,294,222,507.80 and 719,325,935.20

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Solution

The fourth proportional to 862,815,005.20, 1,294,222,507.80 and 719,325,935.20 is: 1,078,988,902.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,815,005.20 : 1,294,222,507.80 = 719,325,935.20 : x
  2. Step 2: Convert to fraction form
    862,815,005.20/1,294,222,507.80 = 719,325,935.20/x
  3. Step 3: Cross multiply
    862,815,005.20x = 1,294,222,507.80 × 719,325,935.20
  4. Step 4: Simplify right side
    862,815,005.20x = 930,967,815,780,124,288
  5. Step 5: Solve for x
    x = 930,967,815,780,124,288/862,815,005.20
  6. Step 6: Final answer
    x = 1,078,988,902.80

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1.5x scale

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.