Home / 353,855,707.46-488,212,666.29-205,147,156.76

Finding the Fourth Proportional to 353,855,707.46, 488,212,666.29 and 205,147,156.76

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Solution

The fourth proportional to 353,855,707.46, 488,212,666.29 and 205,147,156.76 is: 283,040,341.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,855,707.46 : 488,212,666.29 = 205,147,156.76 : x
  2. Step 2: Convert to fraction form
    353,855,707.46/488,212,666.29 = 205,147,156.76/x
  3. Step 3: Cross multiply
    353,855,707.46x = 488,212,666.29 × 205,147,156.76
  4. Step 4: Simplify right side
    353,855,707.46x = 100,155,440,381,171,136
  5. Step 5: Solve for x
    x = 100,155,440,381,171,136/353,855,707.46
  6. Step 6: Final answer
    x = 283,040,341.79

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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.