Home / 696,929,143.77-1,045,422,564.10-205,642,413.65

Finding the Fourth Proportional to 696,929,143.77, 1,045,422,564.10 and 205,642,413.65

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Solution

The fourth proportional to 696,929,143.77, 1,045,422,564.10 and 205,642,413.65 is: 308,472,132.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,929,143.77 : 1,045,422,564.10 = 205,642,413.65 : x
  2. Step 2: Convert to fraction form
    696,929,143.77/1,045,422,564.10 = 205,642,413.65/x
  3. Step 3: Cross multiply
    696,929,143.77x = 1,045,422,564.10 × 205,642,413.65
  4. Step 4: Simplify right side
    696,929,143.77x = 214,983,219,367,795,296
  5. Step 5: Solve for x
    x = 214,983,219,367,795,296/696,929,143.77
  6. Step 6: Final answer
    x = 308,472,132.77

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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.