Home / 677,815,339.95-935,333,835.33-380,400,141.57

Finding the Fourth Proportional to 677,815,339.95, 935,333,835.33 and 380,400,141.57

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Solution

The fourth proportional to 677,815,339.95, 935,333,835.33 and 380,400,141.57 is: 524,923,386.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,815,339.95 : 935,333,835.33 = 380,400,141.57 : x
  2. Step 2: Convert to fraction form
    677,815,339.95/935,333,835.33 = 380,400,141.57/x
  3. Step 3: Cross multiply
    677,815,339.95x = 935,333,835.33 × 380,400,141.57
  4. Step 4: Simplify right side
    677,815,339.95x = 355,801,123,374,743,104
  5. Step 5: Solve for x
    x = 355,801,123,374,743,104/677,815,339.95
  6. Step 6: Final answer
    x = 524,923,386.07

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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.