Home / 666,366,134,189.97-999,234,109,749.90-258,143,707,875.91

Finding the Fourth Proportional to 666,366,134,189.97, 999,234,109,749.90 and 258,143,707,875.91

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Solution

The fourth proportional to 666,366,134,189.97, 999,234,109,749.90 and 258,143,707,875.91 is: 387,093,498,442.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,366,134,189.97 : 999,234,109,749.90 = 258,143,707,875.91 : x
  2. Step 2: Convert to fraction form
    666,366,134,189.97/999,234,109,749.90 = 258,143,707,875.91/x
  3. Step 3: Cross multiply
    666,366,134,189.97x = 999,234,109,749.90 × 258,143,707,875.91
  4. Step 4: Simplify right side
    666,366,134,189.97x = 257,945,998,126,923,185,651,712
  5. Step 5: Solve for x
    x = 257,945,998,126,923,185,651,712/666,366,134,189.97
  6. Step 6: Final answer
    x = 387,093,498,442.09

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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.