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Finding the Fourth Proportional to 613,467,401.80, 920,201,102.70 and 354,549,346.60

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Solution

The fourth proportional to 613,467,401.80, 920,201,102.70 and 354,549,346.60 is: 531,824,019.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,467,401.80 : 920,201,102.70 = 354,549,346.60 : x
  2. Step 2: Convert to fraction form
    613,467,401.80/920,201,102.70 = 354,549,346.60/x
  3. Step 3: Cross multiply
    613,467,401.80x = 920,201,102.70 × 354,549,346.60
  4. Step 4: Simplify right side
    613,467,401.80x = 326,256,699,702,884,544
  5. Step 5: Solve for x
    x = 326,256,699,702,884,544/613,467,401.80
  6. Step 6: Final answer
    x = 531,824,019.90

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1.5x scale

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.