Home / 436,890,038.40-655,335,057.60-393,052,060.80

Finding the Fourth Proportional to 436,890,038.40, 655,335,057.60 and 393,052,060.80

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Solution

The fourth proportional to 436,890,038.40, 655,335,057.60 and 393,052,060.80 is: 589,578,091.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,890,038.40 : 655,335,057.60 = 393,052,060.80 : x
  2. Step 2: Convert to fraction form
    436,890,038.40/655,335,057.60 = 393,052,060.80/x
  3. Step 3: Cross multiply
    436,890,038.40x = 655,335,057.60 × 393,052,060.80
  4. Step 4: Simplify right side
    436,890,038.40x = 257,580,794,904,166,720
  5. Step 5: Solve for x
    x = 257,580,794,904,166,720/436,890,038.40
  6. Step 6: Final answer
    x = 589,578,091.20

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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.