Home / 543,203,852.97-749,639,423.51-305,090,998.39

Finding the Fourth Proportional to 543,203,852.97, 749,639,423.51 and 305,090,998.39

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Solution

The fourth proportional to 543,203,852.97, 749,639,423.51 and 305,090,998.39 is: 421,035,747.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,203,852.97 : 749,639,423.51 = 305,090,998.39 : x
  2. Step 2: Convert to fraction form
    543,203,852.97/749,639,423.51 = 305,090,998.39/x
  3. Step 3: Cross multiply
    543,203,852.97x = 749,639,423.51 × 305,090,998.39
  4. Step 4: Simplify right side
    543,203,852.97x = 228,708,240,147,939,776
  5. Step 5: Solve for x
    x = 228,708,240,147,939,776/543,203,852.97
  6. Step 6: Final answer
    x = 421,035,747.26

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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.