Home / 261,102,336,065.60-391,653,504,098.40-208,859,560,001.60

Finding the Fourth Proportional to 261,102,336,065.60, 391,653,504,098.40 and 208,859,560,001.60

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Solution

The fourth proportional to 261,102,336,065.60, 391,653,504,098.40 and 208,859,560,001.60 is: 313,289,340,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,102,336,065.60 : 391,653,504,098.40 = 208,859,560,001.60 : x
  2. Step 2: Convert to fraction form
    261,102,336,065.60/391,653,504,098.40 = 208,859,560,001.60/x
  3. Step 3: Cross multiply
    261,102,336,065.60x = 391,653,504,098.40 × 208,859,560,001.60
  4. Step 4: Simplify right side
    261,102,336,065.60x = 81,800,578,539,076,674,650,112
  5. Step 5: Solve for x
    x = 81,800,578,539,076,674,650,112/261,102,336,065.60
  6. Step 6: Final answer
    x = 313,289,340,002.40

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1.5x scale

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.