Home / 728,938,109.48-1,005,933,939.36-411,465,182.64

Finding the Fourth Proportional to 728,938,109.48, 1,005,933,939.36 and 411,465,182.64

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Solution

The fourth proportional to 728,938,109.48, 1,005,933,939.36 and 411,465,182.64 is: 567,821,584.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,938,109.48 : 1,005,933,939.36 = 411,465,182.64 : x
  2. Step 2: Convert to fraction form
    728,938,109.48/1,005,933,939.36 = 411,465,182.64/x
  3. Step 3: Cross multiply
    728,938,109.48x = 1,005,933,939.36 × 411,465,182.64
  4. Step 4: Simplify right side
    728,938,109.48x = 413,906,792,082,537,088
  5. Step 5: Solve for x
    x = 413,906,792,082,537,088/728,938,109.48
  6. Step 6: Final answer
    x = 567,821,584.16

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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.