Home / 677,815,339.06-935,333,834.13-380,400,140.70

Finding the Fourth Proportional to 677,815,339.06, 935,333,834.13 and 380,400,140.70

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Solution

The fourth proportional to 677,815,339.06, 935,333,834.13 and 380,400,140.70 is: 524,923,384.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,815,339.06 : 935,333,834.13 = 380,400,140.70 : x
  2. Step 2: Convert to fraction form
    677,815,339.06/935,333,834.13 = 380,400,140.70/x
  3. Step 3: Cross multiply
    677,815,339.06x = 935,333,834.13 × 380,400,140.70
  4. Step 4: Simplify right side
    677,815,339.06x = 355,801,122,104,522,432
  5. Step 5: Solve for x
    x = 355,801,122,104,522,432/677,815,339.06
  6. Step 6: Final answer
    x = 524,923,384.88

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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.