Home / 188,588,838.64-260,029,931.28-129,078,801.20

Finding the Fourth Proportional to 188,588,838.64, 260,029,931.28 and 129,078,801.20

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Solution

The fourth proportional to 188,588,838.64, 260,029,931.28 and 129,078,801.20 is: 177,976,342.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,588,838.64 : 260,029,931.28 = 129,078,801.20 : x
  2. Step 2: Convert to fraction form
    188,588,838.64/260,029,931.28 = 129,078,801.20/x
  3. Step 3: Cross multiply
    188,588,838.64x = 260,029,931.28 × 129,078,801.20
  4. Step 4: Simplify right side
    188,588,838.64x = 33,564,351,805,740,784
  5. Step 5: Solve for x
    x = 33,564,351,805,740,784/188,588,838.64
  6. Step 6: Final answer
    x = 177,976,342.86

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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.