Home / 1,025,568,207.30-1,538,314,986.15-411,985,820.10

Finding the Fourth Proportional to 1,025,568,207.30, 1,538,314,986.15 and 411,985,820.10

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Solution

The fourth proportional to 1,025,568,207.30, 1,538,314,986.15 and 411,985,820.10 is: 617,963,736.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,568,207.30 : 1,538,314,986.15 = 411,985,820.10 : x
  2. Step 2: Convert to fraction form
    1,025,568,207.30/1,538,314,986.15 = 411,985,820.10/x
  3. Step 3: Cross multiply
    1,025,568,207.30x = 1,538,314,986.15 × 411,985,820.10
  4. Step 4: Simplify right side
    1,025,568,207.30x = 633,763,961,141,127,936
  5. Step 5: Solve for x
    x = 633,763,961,141,127,936/1,025,568,207.30
  6. Step 6: Final answer
    x = 617,963,736.23

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Double scale
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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.