Home / 285,433,367.70-428,150,051.55-199,339,925.70

Finding the Fourth Proportional to 285,433,367.70, 428,150,051.55 and 199,339,925.70

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Solution

The fourth proportional to 285,433,367.70, 428,150,051.55 and 199,339,925.70 is: 299,009,888.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,433,367.70 : 428,150,051.55 = 199,339,925.70 : x
  2. Step 2: Convert to fraction form
    285,433,367.70/428,150,051.55 = 199,339,925.70/x
  3. Step 3: Cross multiply
    285,433,367.70x = 428,150,051.55 × 199,339,925.70
  4. Step 4: Simplify right side
    285,433,367.70x = 85,347,399,464,428,160
  5. Step 5: Solve for x
    x = 85,347,399,464,428,160/285,433,367.70
  6. Step 6: Final answer
    x = 299,009,888.55

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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.