Home / 543,215,203.57-749,655,068.14-305,102,284.86

Finding the Fourth Proportional to 543,215,203.57, 749,655,068.14 and 305,102,284.86

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Solution

The fourth proportional to 543,215,203.57, 749,655,068.14 and 305,102,284.86 is: 421,051,311.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,215,203.57 : 749,655,068.14 = 305,102,284.86 : x
  2. Step 2: Convert to fraction form
    543,215,203.57/749,655,068.14 = 305,102,284.86/x
  3. Step 3: Cross multiply
    543,215,203.57x = 749,655,068.14 × 305,102,284.86
  4. Step 4: Simplify right side
    543,215,203.57x = 228,721,474,141,119,200
  5. Step 5: Solve for x
    x = 228,721,474,141,119,200/543,215,203.57
  6. Step 6: Final answer
    x = 421,051,311.96

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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.