Home / 289,991,311.52-400,187,987.60-157,833,255.64

Finding the Fourth Proportional to 289,991,311.52, 400,187,987.60 and 157,833,255.64

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Solution

The fourth proportional to 289,991,311.52, 400,187,987.60 and 157,833,255.64 is: 217,809,880.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,991,311.52 : 400,187,987.60 = 157,833,255.64 : x
  2. Step 2: Convert to fraction form
    289,991,311.52/400,187,987.60 = 157,833,255.64/x
  3. Step 3: Cross multiply
    289,991,311.52x = 400,187,987.60 × 157,833,255.64
  4. Step 4: Simplify right side
    289,991,311.52x = 63,162,972,950,927,952
  5. Step 5: Solve for x
    x = 63,162,972,950,927,952/289,991,311.52
  6. Step 6: Final answer
    x = 217,809,880.65

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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.