Home / 525,363,107.20-787,973,121.60-137,216,291.20

Finding the Fourth Proportional to 525,363,107.20, 787,973,121.60 and 137,216,291.20

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Solution

The fourth proportional to 525,363,107.20, 787,973,121.60 and 137,216,291.20 is: 205,805,751.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,363,107.20 : 787,973,121.60 = 137,216,291.20 : x
  2. Step 2: Convert to fraction form
    525,363,107.20/787,973,121.60 = 137,216,291.20/x
  3. Step 3: Cross multiply
    525,363,107.20x = 787,973,121.60 × 137,216,291.20
  4. Step 4: Simplify right side
    525,363,107.20x = 108,122,749,311,238,608
  5. Step 5: Solve for x
    x = 108,122,749,311,238,608/525,363,107.20
  6. Step 6: Final answer
    x = 205,805,751.93

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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.