Home / 1,284,104,841.12-1,772,173,967.76-727,286,942.88

Finding the Fourth Proportional to 1,284,104,841.12, 1,772,173,967.76 and 727,286,942.88

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Solution

The fourth proportional to 1,284,104,841.12, 1,772,173,967.76 and 727,286,942.88 is: 1,003,717,878.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,104,841.12 : 1,772,173,967.76 = 727,286,942.88 : x
  2. Step 2: Convert to fraction form
    1,284,104,841.12/1,772,173,967.76 = 727,286,942.88/x
  3. Step 3: Cross multiply
    1,284,104,841.12x = 1,772,173,967.76 × 727,286,942.88
  4. Step 4: Simplify right side
    1,284,104,841.12x = 1,288,878,987,263,689,984
  5. Step 5: Solve for x
    x = 1,288,878,987,263,689,984/1,284,104,841.12
  6. Step 6: Final answer
    x = 1,003,717,878.78

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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.