Home / 811,928,932.08-1,217,620,447.56-294,250,985.52

Finding the Fourth Proportional to 811,928,932.08, 1,217,620,447.56 and 294,250,985.52

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Solution

The fourth proportional to 811,928,932.08, 1,217,620,447.56 and 294,250,985.52 is: 441,277,558.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,928,932.08 : 1,217,620,447.56 = 294,250,985.52 : x
  2. Step 2: Convert to fraction form
    811,928,932.08/1,217,620,447.56 = 294,250,985.52/x
  3. Step 3: Cross multiply
    811,928,932.08x = 1,217,620,447.56 × 294,250,985.52
  4. Step 4: Simplify right side
    811,928,932.08x = 358,286,016,683,833,408
  5. Step 5: Solve for x
    x = 358,286,016,683,833,408/811,928,932.08
  6. Step 6: Final answer
    x = 441,277,558.33

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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.