Home / 905,103,485.70-1,357,655,228.55-323,494,455.30

Finding the Fourth Proportional to 905,103,485.70, 1,357,655,228.55 and 323,494,455.30

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Solution

The fourth proportional to 905,103,485.70, 1,357,655,228.55 and 323,494,455.30 is: 485,241,682.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,103,485.70 : 1,357,655,228.55 = 323,494,455.30 : x
  2. Step 2: Convert to fraction form
    905,103,485.70/1,357,655,228.55 = 323,494,455.30/x
  3. Step 3: Cross multiply
    905,103,485.70x = 1,357,655,228.55 × 323,494,455.30
  4. Step 4: Simplify right side
    905,103,485.70x = 439,193,938,644,979,264
  5. Step 5: Solve for x
    x = 439,193,938,644,979,264/905,103,485.70
  6. Step 6: Final answer
    x = 485,241,682.95

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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.