Home / 436,656,220.80-654,984,331.20-400,943,385.60

Finding the Fourth Proportional to 436,656,220.80, 654,984,331.20 and 400,943,385.60

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Solution

The fourth proportional to 436,656,220.80, 654,984,331.20 and 400,943,385.60 is: 601,415,078.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,656,220.80 : 654,984,331.20 = 400,943,385.60 : x
  2. Step 2: Convert to fraction form
    436,656,220.80/654,984,331.20 = 400,943,385.60/x
  3. Step 3: Cross multiply
    436,656,220.80x = 654,984,331.20 × 400,943,385.60
  4. Step 4: Simplify right side
    436,656,220.80x = 262,611,635,266,279,744
  5. Step 5: Solve for x
    x = 262,611,635,266,279,744/436,656,220.80
  6. Step 6: Final answer
    x = 601,415,078.40

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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.