Home / 641,150,672.40-961,726,008.60-437,077,328.40

Finding the Fourth Proportional to 641,150,672.40, 961,726,008.60 and 437,077,328.40

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Solution

The fourth proportional to 641,150,672.40, 961,726,008.60 and 437,077,328.40 is: 655,615,992.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,150,672.40 : 961,726,008.60 = 437,077,328.40 : x
  2. Step 2: Convert to fraction form
    641,150,672.40/961,726,008.60 = 437,077,328.40/x
  3. Step 3: Cross multiply
    641,150,672.40x = 961,726,008.60 × 437,077,328.40
  4. Step 4: Simplify right side
    641,150,672.40x = 420,348,634,491,683,392
  5. Step 5: Solve for x
    x = 420,348,634,491,683,392/641,150,672.40
  6. Step 6: Final answer
    x = 655,615,992.60

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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.