Home / 811,976,261.44-1,120,399,250.02-472,940,534.56

Finding the Fourth Proportional to 811,976,261.44, 1,120,399,250.02 and 472,940,534.56

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Solution

The fourth proportional to 811,976,261.44, 1,120,399,250.02 and 472,940,534.56 is: 652,583,388.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,976,261.44 : 1,120,399,250.02 = 472,940,534.56 : x
  2. Step 2: Convert to fraction form
    811,976,261.44/1,120,399,250.02 = 472,940,534.56/x
  3. Step 3: Cross multiply
    811,976,261.44x = 1,120,399,250.02 × 472,940,534.56
  4. Step 4: Simplify right side
    811,976,261.44x = 529,882,220,225,081,856
  5. Step 5: Solve for x
    x = 529,882,220,225,081,856/811,976,261.44
  6. Step 6: Final answer
    x = 652,583,388.69

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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.