Home / 491,178,638.80-736,767,958.20-199,895,826.70

Finding the Fourth Proportional to 491,178,638.80, 736,767,958.20 and 199,895,826.70

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Solution

The fourth proportional to 491,178,638.80, 736,767,958.20 and 199,895,826.70 is: 299,843,740.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,178,638.80 : 736,767,958.20 = 199,895,826.70 : x
  2. Step 2: Convert to fraction form
    491,178,638.80/736,767,958.20 = 199,895,826.70/x
  3. Step 3: Cross multiply
    491,178,638.80x = 736,767,958.20 × 199,895,826.70
  4. Step 4: Simplify right side
    491,178,638.80x = 147,276,840,090,460,032
  5. Step 5: Solve for x
    x = 147,276,840,090,460,032/491,178,638.80
  6. Step 6: Final answer
    x = 299,843,740.05

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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.