Home / 116,889,801.52-161,296,943.34-79,136,169.70

Finding the Fourth Proportional to 116,889,801.52, 161,296,943.34 and 79,136,169.70

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Solution

The fourth proportional to 116,889,801.52, 161,296,943.34 and 79,136,169.70 is: 109,200,478.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,889,801.52 : 161,296,943.34 = 79,136,169.70 : x
  2. Step 2: Convert to fraction form
    116,889,801.52/161,296,943.34 = 79,136,169.70/x
  3. Step 3: Cross multiply
    116,889,801.52x = 161,296,943.34 × 79,136,169.70
  4. Step 4: Simplify right side
    116,889,801.52x = 12,764,422,280,245,526
  5. Step 5: Solve for x
    x = 12,764,422,280,245,526/116,889,801.52
  6. Step 6: Final answer
    x = 109,200,478.69

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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.