Home / 930,875,986.80-1,396,202,005.80-385,560,658.80

Finding the Fourth Proportional to 930,875,986.80, 1,396,202,005.80 and 385,560,658.80

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Solution

The fourth proportional to 930,875,986.80, 1,396,202,005.80 and 385,560,658.80 is: 578,294,609.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,875,986.80 : 1,396,202,005.80 = 385,560,658.80 : x
  2. Step 2: Convert to fraction form
    930,875,986.80/1,396,202,005.80 = 385,560,658.80/x
  3. Step 3: Cross multiply
    930,875,986.80x = 1,396,202,005.80 × 385,560,658.80
  4. Step 4: Simplify right side
    930,875,986.80x = 538,320,565,174,129,408
  5. Step 5: Solve for x
    x = 538,320,565,174,129,408/930,875,986.80
  6. Step 6: Final answer
    x = 578,294,609.39

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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.