Home / 393,970,166.83-543,669,347.01-215,346,039.67

Finding the Fourth Proportional to 393,970,166.83, 543,669,347.01 and 215,346,039.67

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Solution

The fourth proportional to 393,970,166.83, 543,669,347.01 and 215,346,039.67 is: 297,172,351.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,970,166.83 : 543,669,347.01 = 215,346,039.67 : x
  2. Step 2: Convert to fraction form
    393,970,166.83/543,669,347.01 = 215,346,039.67/x
  3. Step 3: Cross multiply
    393,970,166.83x = 543,669,347.01 × 215,346,039.67
  4. Step 4: Simplify right side
    393,970,166.83x = 117,077,040,768,578,448
  5. Step 5: Solve for x
    x = 117,077,040,768,578,448/393,970,166.83
  6. Step 6: Final answer
    x = 297,172,351.17

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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.