Home / 677,815,340.69-935,333,836.38-380,400,142.32

Finding the Fourth Proportional to 677,815,340.69, 935,333,836.38 and 380,400,142.32

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Solution

The fourth proportional to 677,815,340.69, 935,333,836.38 and 380,400,142.32 is: 524,923,387.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,815,340.69 : 935,333,836.38 = 380,400,142.32 : x
  2. Step 2: Convert to fraction form
    677,815,340.69/935,333,836.38 = 380,400,142.32/x
  3. Step 3: Cross multiply
    677,815,340.69x = 935,333,836.38 × 380,400,142.32
  4. Step 4: Simplify right side
    677,815,340.69x = 355,801,124,475,663,616
  5. Step 5: Solve for x
    x = 355,801,124,475,663,616/677,815,340.69
  6. Step 6: Final answer
    x = 524,923,387.12

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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.