Home / 193,589,438.40-290,384,157.60-172,426,276.80

Finding the Fourth Proportional to 193,589,438.40, 290,384,157.60 and 172,426,276.80

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Solution

The fourth proportional to 193,589,438.40, 290,384,157.60 and 172,426,276.80 is: 258,639,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,589,438.40 : 290,384,157.60 = 172,426,276.80 : x
  2. Step 2: Convert to fraction form
    193,589,438.40/290,384,157.60 = 172,426,276.80/x
  3. Step 3: Cross multiply
    193,589,438.40x = 290,384,157.60 × 172,426,276.80
  4. Step 4: Simplify right side
    193,589,438.40x = 50,069,859,136,672,432
  5. Step 5: Solve for x
    x = 50,069,859,136,672,432/193,589,438.40
  6. Step 6: Final answer
    x = 258,639,415.20

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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.