Home / 193,428,005.20-290,142,007.80-124,553,251.60

Finding the Fourth Proportional to 193,428,005.20, 290,142,007.80 and 124,553,251.60

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Solution

The fourth proportional to 193,428,005.20, 290,142,007.80 and 124,553,251.60 is: 186,829,877.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,428,005.20 : 290,142,007.80 = 124,553,251.60 : x
  2. Step 2: Convert to fraction form
    193,428,005.20/290,142,007.80 = 124,553,251.60/x
  3. Step 3: Cross multiply
    193,428,005.20x = 290,142,007.80 × 124,553,251.60
  4. Step 4: Simplify right side
    193,428,005.20x = 36,138,130,497,242,560
  5. Step 5: Solve for x
    x = 36,138,130,497,242,560/193,428,005.20
  6. Step 6: Final answer
    x = 186,829,877.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.