Home / 419,861,603.84-579,524,257.20-243,706,351.12

Finding the Fourth Proportional to 419,861,603.84, 579,524,257.20 and 243,706,351.12

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Solution

The fourth proportional to 419,861,603.84, 579,524,257.20 and 243,706,351.12 is: 336,381,657.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,861,603.84 : 579,524,257.20 = 243,706,351.12 : x
  2. Step 2: Convert to fraction form
    419,861,603.84/579,524,257.20 = 243,706,351.12/x
  3. Step 3: Cross multiply
    419,861,603.84x = 579,524,257.20 × 243,706,351.12
  4. Step 4: Simplify right side
    419,861,603.84x = 141,233,742,107,740,400
  5. Step 5: Solve for x
    x = 141,233,742,107,740,400/419,861,603.84
  6. Step 6: Final answer
    x = 336,381,657.23

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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.