Home / 543,203,840.00-749,639,405.78-305,090,985.25

Finding the Fourth Proportional to 543,203,840.00, 749,639,405.78 and 305,090,985.25

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Solution

The fourth proportional to 543,203,840.00, 749,639,405.78 and 305,090,985.25 is: 421,035,729.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,203,840.00 : 749,639,405.78 = 305,090,985.25 : x
  2. Step 2: Convert to fraction form
    543,203,840.00/749,639,405.78 = 305,090,985.25/x
  3. Step 3: Cross multiply
    543,203,840.00x = 749,639,405.78 × 305,090,985.25
  4. Step 4: Simplify right side
    543,203,840.00x = 228,708,224,890,086,432
  5. Step 5: Solve for x
    x = 228,708,224,890,086,432/543,203,840.00
  6. Step 6: Final answer
    x = 421,035,729.22

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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.