Home / 879,333,546.39-1,213,501,378.69-477,464,231.78

Finding the Fourth Proportional to 879,333,546.39, 1,213,501,378.69 and 477,464,231.78

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Solution

The fourth proportional to 879,333,546.39, 1,213,501,378.69 and 477,464,231.78 is: 658,912,088.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,333,546.39 : 1,213,501,378.69 = 477,464,231.78 : x
  2. Step 2: Convert to fraction form
    879,333,546.39/1,213,501,378.69 = 477,464,231.78/x
  3. Step 3: Cross multiply
    879,333,546.39x = 1,213,501,378.69 × 477,464,231.78
  4. Step 4: Simplify right side
    879,333,546.39x = 579,403,503,536,574,080
  5. Step 5: Solve for x
    x = 579,403,503,536,574,080/879,333,546.39
  6. Step 6: Final answer
    x = 658,912,088.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.