Home / 685,372,658.16-1,028,646,021.60-680,213,777.52

Finding the Fourth Proportional to 685,372,658.16, 1,028,646,021.60 and 680,213,777.52

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Solution

The fourth proportional to 685,372,658.16, 1,028,646,021.60 and 680,213,777.52 is: 1,020,903,281.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,372,658.16 : 1,028,646,021.60 = 680,213,777.52 : x
  2. Step 2: Convert to fraction form
    685,372,658.16/1,028,646,021.60 = 680,213,777.52/x
  3. Step 3: Cross multiply
    685,372,658.16x = 1,028,646,021.60 × 680,213,777.52
  4. Step 4: Simplify right side
    685,372,658.16x = 699,699,196,083,455,488
  5. Step 5: Solve for x
    x = 699,699,196,083,455,488/685,372,658.16
  6. Step 6: Final answer
    x = 1,020,903,281.96

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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.