Home / 121,977,678,905.88-168,333,279,715.08-67,786,511,605.89

Finding the Fourth Proportional to 121,977,678,905.88, 168,333,279,715.08 and 67,786,511,605.89

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Solution

The fourth proportional to 121,977,678,905.88, 168,333,279,715.08 and 67,786,511,605.89 is: 93,547,654,959.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,977,678,905.88 : 168,333,279,715.08 = 67,786,511,605.89 : x
  2. Step 2: Convert to fraction form
    121,977,678,905.88/168,333,279,715.08 = 67,786,511,605.89/x
  3. Step 3: Cross multiply
    121,977,678,905.88x = 168,333,279,715.08 × 67,786,511,605.89
  4. Step 4: Simplify right side
    121,977,678,905.88x = 11,410,725,819,063,797,284,864
  5. Step 5: Solve for x
    x = 11,410,725,819,063,797,284,864/121,977,678,905.88
  6. Step 6: Final answer
    x = 93,547,654,959.63

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1.5x scale

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.