Home / 116,725,884.32-160,998,180.08-81,926,340.32

Finding the Fourth Proportional to 116,725,884.32, 160,998,180.08 and 81,926,340.32

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Solution

The fourth proportional to 116,725,884.32, 160,998,180.08 and 81,926,340.32 is: 112,999,715.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,725,884.32 : 160,998,180.08 = 81,926,340.32 : x
  2. Step 2: Convert to fraction form
    116,725,884.32/160,998,180.08 = 81,926,340.32/x
  3. Step 3: Cross multiply
    116,725,884.32x = 160,998,180.08 × 81,926,340.32
  4. Step 4: Simplify right side
    116,725,884.32x = 13,189,991,692,134,724
  5. Step 5: Solve for x
    x = 13,189,991,692,134,724/116,725,884.32
  6. Step 6: Final answer
    x = 112,999,715.26

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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.