Home / 666,366,134,191.02-999,234,109,751.42-258,143,707,876.91

Finding the Fourth Proportional to 666,366,134,191.02, 999,234,109,751.42 and 258,143,707,876.91

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Solution

The fourth proportional to 666,366,134,191.02, 999,234,109,751.42 and 258,143,707,876.91 is: 387,093,498,443.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,366,134,191.02 : 999,234,109,751.42 = 258,143,707,876.91 : x
  2. Step 2: Convert to fraction form
    666,366,134,191.02/999,234,109,751.42 = 258,143,707,876.91/x
  3. Step 3: Cross multiply
    666,366,134,191.02x = 999,234,109,751.42 × 258,143,707,876.91
  4. Step 4: Simplify right side
    666,366,134,191.02x = 257,945,998,128,314,822,164,480
  5. Step 5: Solve for x
    x = 257,945,998,128,314,822,164,480/666,366,134,191.02
  6. Step 6: Final answer
    x = 387,093,498,443.56

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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.