Home / 521,141,040.24-781,709,855.32-189,147,607.56

Finding the Fourth Proportional to 521,141,040.24, 781,709,855.32 and 189,147,607.56

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Solution

The fourth proportional to 521,141,040.24, 781,709,855.32 and 189,147,607.56 is: 283,720,792.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,141,040.24 : 781,709,855.32 = 189,147,607.56 : x
  2. Step 2: Convert to fraction form
    521,141,040.24/781,709,855.32 = 189,147,607.56/x
  3. Step 3: Cross multiply
    521,141,040.24x = 781,709,855.32 × 189,147,607.56
  4. Step 4: Simplify right side
    521,141,040.24x = 147,858,548,939,851,744
  5. Step 5: Solve for x
    x = 147,858,548,939,851,744/521,141,040.24
  6. Step 6: Final answer
    x = 283,720,792.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.