Home / 811,820,254.32-1,120,314,887.64-440,542,187.28

Finding the Fourth Proportional to 811,820,254.32, 1,120,314,887.64 and 440,542,187.28

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Solution

The fourth proportional to 811,820,254.32, 1,120,314,887.64 and 440,542,187.28 is: 607,949,812.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,820,254.32 : 1,120,314,887.64 = 440,542,187.28 : x
  2. Step 2: Convert to fraction form
    811,820,254.32/1,120,314,887.64 = 440,542,187.28/x
  3. Step 3: Cross multiply
    811,820,254.32x = 1,120,314,887.64 × 440,542,187.28
  4. Step 4: Simplify right side
    811,820,254.32x = 493,545,971,043,273,024
  5. Step 5: Solve for x
    x = 493,545,971,043,273,024/811,820,254.32
  6. Step 6: Final answer
    x = 607,949,812.06

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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.