Home / 869,165,455.36-1,303,729,244.16-408,848,478.72

Finding the Fourth Proportional to 869,165,455.36, 1,303,729,244.16 and 408,848,478.72

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Solution

The fourth proportional to 869,165,455.36, 1,303,729,244.16 and 408,848,478.72 is: 613,263,809.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,165,455.36 : 1,303,729,244.16 = 408,848,478.72 : x
  2. Step 2: Convert to fraction form
    869,165,455.36/1,303,729,244.16 = 408,848,478.72/x
  3. Step 3: Cross multiply
    869,165,455.36x = 1,303,729,244.16 × 408,848,478.72
  4. Step 4: Simplify right side
    869,165,455.36x = 533,027,718,137,591,488
  5. Step 5: Solve for x
    x = 533,027,718,137,591,488/869,165,455.36
  6. Step 6: Final answer
    x = 613,263,809.38

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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.