Home / 810,153,891.80-1,215,264,015.30-235,725,219.80

Finding the Fourth Proportional to 810,153,891.80, 1,215,264,015.30 and 235,725,219.80

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Solution

The fourth proportional to 810,153,891.80, 1,215,264,015.30 and 235,725,219.80 is: 353,597,483.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,153,891.80 : 1,215,264,015.30 = 235,725,219.80 : x
  2. Step 2: Convert to fraction form
    810,153,891.80/1,215,264,015.30 = 235,725,219.80/x
  3. Step 3: Cross multiply
    810,153,891.80x = 1,215,264,015.30 × 235,725,219.80
  4. Step 4: Simplify right side
    810,153,891.80x = 286,468,377,121,623,072
  5. Step 5: Solve for x
    x = 286,468,377,121,623,072/810,153,891.80
  6. Step 6: Final answer
    x = 353,597,483.17

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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.