Home / 392,040,765.60-587,919,430.80-197,887,653.60

Finding the Fourth Proportional to 392,040,765.60, 587,919,430.80 and 197,887,653.60

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Solution

The fourth proportional to 392,040,765.60, 587,919,430.80 and 197,887,653.60 is: 296,759,946.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,040,765.60 : 587,919,430.80 = 197,887,653.60 : x
  2. Step 2: Convert to fraction form
    392,040,765.60/587,919,430.80 = 197,887,653.60/x
  3. Step 3: Cross multiply
    392,040,765.60x = 587,919,430.80 × 197,887,653.60
  4. Step 4: Simplify right side
    392,040,765.60x = 116,341,996,666,859,552
  5. Step 5: Solve for x
    x = 116,341,996,666,859,552/392,040,765.60
  6. Step 6: Final answer
    x = 296,759,946.61

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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.