Home / 290,923,893.59-401,474,867.10-158,764,890.42

Finding the Fourth Proportional to 290,923,893.59, 401,474,867.10 and 158,764,890.42

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Solution

The fourth proportional to 290,923,893.59, 401,474,867.10 and 158,764,890.42 is: 219,095,490.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,923,893.59 : 401,474,867.10 = 158,764,890.42 : x
  2. Step 2: Convert to fraction form
    290,923,893.59/401,474,867.10 = 158,764,890.42/x
  3. Step 3: Cross multiply
    290,923,893.59x = 401,474,867.10 × 158,764,890.42
  4. Step 4: Simplify right side
    290,923,893.59x = 63,740,113,281,515,560
  5. Step 5: Solve for x
    x = 63,740,113,281,515,560/290,923,893.59
  6. Step 6: Final answer
    x = 219,095,490.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.