Home / 829,533,980.58-1,243,431,885.77-386,511,362.61

Finding the Fourth Proportional to 829,533,980.58, 1,243,431,885.77 and 386,511,362.61

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Solution

The fourth proportional to 829,533,980.58, 1,243,431,885.77 and 386,511,362.61 is: 579,362,104.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,533,980.58 : 1,243,431,885.77 = 386,511,362.61 : x
  2. Step 2: Convert to fraction form
    829,533,980.58/1,243,431,885.77 = 386,511,362.61/x
  3. Step 3: Cross multiply
    829,533,980.58x = 1,243,431,885.77 × 386,511,362.61
  4. Step 4: Simplify right side
    829,533,980.58x = 480,600,552,481,684,608
  5. Step 5: Solve for x
    x = 480,600,552,481,684,608/829,533,980.58
  6. Step 6: Final answer
    x = 579,362,104.18

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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.