Home / 677,815,334.69-935,333,828.11-380,400,136.31

Finding the Fourth Proportional to 677,815,334.69, 935,333,828.11 and 380,400,136.31

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Solution

The fourth proportional to 677,815,334.69, 935,333,828.11 and 380,400,136.31 is: 524,923,378.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,815,334.69 : 935,333,828.11 = 380,400,136.31 : x
  2. Step 2: Convert to fraction form
    677,815,334.69/935,333,828.11 = 380,400,136.31/x
  3. Step 3: Cross multiply
    677,815,334.69x = 935,333,828.11 × 380,400,136.31
  4. Step 4: Simplify right side
    677,815,334.69x = 355,801,115,711,215,744
  5. Step 5: Solve for x
    x = 355,801,115,711,215,744/677,815,334.69
  6. Step 6: Final answer
    x = 524,923,378.84

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1.5x scale

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.