Home / 397,989,453.60-596,984,180.40-121,640,133.60

Finding the Fourth Proportional to 397,989,453.60, 596,984,180.40 and 121,640,133.60

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Solution

The fourth proportional to 397,989,453.60, 596,984,180.40 and 121,640,133.60 is: 182,460,200.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,989,453.60 : 596,984,180.40 = 121,640,133.60 : x
  2. Step 2: Convert to fraction form
    397,989,453.60/596,984,180.40 = 121,640,133.60/x
  3. Step 3: Cross multiply
    397,989,453.60x = 596,984,180.40 × 121,640,133.60
  4. Step 4: Simplify right side
    397,989,453.60x = 72,617,235,460,942,496
  5. Step 5: Solve for x
    x = 72,617,235,460,942,496/397,989,453.60
  6. Step 6: Final answer
    x = 182,460,200.40

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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.