Home / 420,724,266.40-631,086,399.60-414,984,703.60

Finding the Fourth Proportional to 420,724,266.40, 631,086,399.60 and 414,984,703.60

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Solution

The fourth proportional to 420,724,266.40, 631,086,399.60 and 414,984,703.60 is: 622,477,055.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,724,266.40 : 631,086,399.60 = 414,984,703.60 : x
  2. Step 2: Convert to fraction form
    420,724,266.40/631,086,399.60 = 414,984,703.60/x
  3. Step 3: Cross multiply
    420,724,266.40x = 631,086,399.60 × 414,984,703.60
  4. Step 4: Simplify right side
    420,724,266.40x = 261,891,202,483,997,184
  5. Step 5: Solve for x
    x = 261,891,202,483,997,184/420,724,266.40
  6. Step 6: Final answer
    x = 622,477,055.40

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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.