Home / 354,295,010.40-531,442,515.60-321,983,397.60

Finding the Fourth Proportional to 354,295,010.40, 531,442,515.60 and 321,983,397.60

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Solution

The fourth proportional to 354,295,010.40, 531,442,515.60 and 321,983,397.60 is: 482,975,096.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,295,010.40 : 531,442,515.60 = 321,983,397.60 : x
  2. Step 2: Convert to fraction form
    354,295,010.40/531,442,515.60 = 321,983,397.60/x
  3. Step 3: Cross multiply
    354,295,010.40x = 531,442,515.60 × 321,983,397.60
  4. Step 4: Simplify right side
    354,295,010.40x = 171,115,666,801,979,008
  5. Step 5: Solve for x
    x = 171,115,666,801,979,008/354,295,010.40
  6. Step 6: Final answer
    x = 482,975,096.40

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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.