Home / 811,976,268.43-1,120,399,259.65-472,940,541.55

Finding the Fourth Proportional to 811,976,268.43, 1,120,399,259.65 and 472,940,541.55

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Solution

The fourth proportional to 811,976,268.43, 1,120,399,259.65 and 472,940,541.55 is: 652,583,398.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,976,268.43 : 1,120,399,259.65 = 472,940,541.55 : x
  2. Step 2: Convert to fraction form
    811,976,268.43/1,120,399,259.65 = 472,940,541.55/x
  3. Step 3: Cross multiply
    811,976,268.43x = 1,120,399,259.65 × 472,940,541.55
  4. Step 4: Simplify right side
    811,976,268.43x = 529,882,232,611,090,112
  5. Step 5: Solve for x
    x = 529,882,232,611,090,112/811,976,268.43
  6. Step 6: Final answer
    x = 652,583,398.32

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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.