Home / 387,339,359.55-581,043,930.65-125,030,129.87

Finding the Fourth Proportional to 387,339,359.55, 581,043,930.65 and 125,030,129.87

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Solution

The fourth proportional to 387,339,359.55, 581,043,930.65 and 125,030,129.87 is: 187,556,457.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,339,359.55 : 581,043,930.65 = 125,030,129.87 : x
  2. Step 2: Convert to fraction form
    387,339,359.55/581,043,930.65 = 125,030,129.87/x
  3. Step 3: Cross multiply
    387,339,359.55x = 581,043,930.65 × 125,030,129.87
  4. Step 4: Simplify right side
    387,339,359.55x = 72,647,998,105,814,400
  5. Step 5: Solve for x
    x = 72,647,998,105,814,400/387,339,359.55
  6. Step 6: Final answer
    x = 187,556,457.44

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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.