Home / 393,534,967.50-543,078,294.03-219,694,711.50

Finding the Fourth Proportional to 393,534,967.50, 543,078,294.03 and 219,694,711.50

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Solution

The fourth proportional to 393,534,967.50, 543,078,294.03 and 219,694,711.50 is: 303,178,723.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,534,967.50 : 543,078,294.03 = 219,694,711.50 : x
  2. Step 2: Convert to fraction form
    393,534,967.50/543,078,294.03 = 219,694,711.50/x
  3. Step 3: Cross multiply
    393,534,967.50x = 543,078,294.03 × 219,694,711.50
  4. Step 4: Simplify right side
    393,534,967.50x = 119,311,429,128,833,024
  5. Step 5: Solve for x
    x = 119,311,429,128,833,024/393,534,967.50
  6. Step 6: Final answer
    x = 303,178,723.58

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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.