Home / 930,860,140.89-1,284,596,893.67-513,187,372.97

Finding the Fourth Proportional to 930,860,140.89, 1,284,596,893.67 and 513,187,372.97

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Solution

The fourth proportional to 930,860,140.89, 1,284,596,893.67 and 513,187,372.97 is: 708,204,032.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,860,140.89 : 1,284,596,893.67 = 513,187,372.97 : x
  2. Step 2: Convert to fraction form
    930,860,140.89/1,284,596,893.67 = 513,187,372.97/x
  3. Step 3: Cross multiply
    930,860,140.89x = 1,284,596,893.67 × 513,187,372.97
  4. Step 4: Simplify right side
    930,860,140.89x = 659,238,905,178,940,800
  5. Step 5: Solve for x
    x = 659,238,905,178,940,800/930,860,140.89
  6. Step 6: Final answer
    x = 708,204,032.19

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.