Home / 427,561,972.40-641,342,958.60-366,339,969.20

Finding the Fourth Proportional to 427,561,972.40, 641,342,958.60 and 366,339,969.20

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Solution

The fourth proportional to 427,561,972.40, 641,342,958.60 and 366,339,969.20 is: 549,509,953.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,561,972.40 : 641,342,958.60 = 366,339,969.20 : x
  2. Step 2: Convert to fraction form
    427,561,972.40/641,342,958.60 = 366,339,969.20/x
  3. Step 3: Cross multiply
    427,561,972.40x = 641,342,958.60 × 366,339,969.20
  4. Step 4: Simplify right side
    427,561,972.40x = 234,949,559,700,160,864
  5. Step 5: Solve for x
    x = 234,949,559,700,160,864/427,561,972.40
  6. Step 6: Final answer
    x = 549,509,953.80

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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.