Home / 808,707,941.10-1,213,061,911.65-324,381,336.30

Finding the Fourth Proportional to 808,707,941.10, 1,213,061,911.65 and 324,381,336.30

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Solution

The fourth proportional to 808,707,941.10, 1,213,061,911.65 and 324,381,336.30 is: 486,572,004.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,707,941.10 : 1,213,061,911.65 = 324,381,336.30 : x
  2. Step 2: Convert to fraction form
    808,707,941.10/1,213,061,911.65 = 324,381,336.30/x
  3. Step 3: Cross multiply
    808,707,941.10x = 1,213,061,911.65 × 324,381,336.30
  4. Step 4: Simplify right side
    808,707,941.10x = 393,494,643,915,659,584
  5. Step 5: Solve for x
    x = 393,494,643,915,659,584/808,707,941.10
  6. Step 6: Final answer
    x = 486,572,004.45

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Double scale
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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.