Home / 387,339,360.55-581,043,932.15-125,030,130.87

Finding the Fourth Proportional to 387,339,360.55, 581,043,932.15 and 125,030,130.87

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Solution

The fourth proportional to 387,339,360.55, 581,043,932.15 and 125,030,130.87 is: 187,556,458.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,339,360.55 : 581,043,932.15 = 125,030,130.87 : x
  2. Step 2: Convert to fraction form
    387,339,360.55/581,043,932.15 = 125,030,130.87/x
  3. Step 3: Cross multiply
    387,339,360.55x = 581,043,932.15 × 125,030,130.87
  4. Step 4: Simplify right side
    387,339,360.55x = 72,647,998,877,933,904
  5. Step 5: Solve for x
    x = 72,647,998,877,933,904/387,339,360.55
  6. Step 6: Final answer
    x = 187,556,458.95

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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.