Home / 869,258,906.10-1,303,440,461.55-323,719,629.30

Finding the Fourth Proportional to 869,258,906.10, 1,303,440,461.55 and 323,719,629.30

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Solution

The fourth proportional to 869,258,906.10, 1,303,440,461.55 and 323,719,629.30 is: 485,412,642.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,258,906.10 : 1,303,440,461.55 = 323,719,629.30 : x
  2. Step 2: Convert to fraction form
    869,258,906.10/1,303,440,461.55 = 323,719,629.30/x
  3. Step 3: Cross multiply
    869,258,906.10x = 1,303,440,461.55 × 323,719,629.30
  4. Step 4: Simplify right side
    869,258,906.10x = 421,949,263,027,586,880
  5. Step 5: Solve for x
    x = 421,949,263,027,586,880/869,258,906.10
  6. Step 6: Final answer
    x = 485,412,642.96

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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.