Home / 1,257,342,059.68-1,722,566,988-1,210,215,922.72

Finding the Fourth Proportional to 1,257,342,059.68, 1,722,566,988 and 1,210,215,922.72

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Solution

The fourth proportional to 1,257,342,059.68, 1,722,566,988 and 1,210,215,922.72 is: 1,658,003,866.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,342,059.68 : 1,722,566,988 = 1,210,215,922.72 : x
  2. Step 2: Convert to fraction form
    1,257,342,059.68/1,722,566,988 = 1,210,215,922.72/x
  3. Step 3: Cross multiply
    1,257,342,059.68x = 1,722,566,988 × 1,210,215,922.72
  4. Step 4: Simplify right side
    1,257,342,059.68x = 2,084,677,996,829,431,296
  5. Step 5: Solve for x
    x = 2,084,677,996,829,431,296/1,257,342,059.68
  6. Step 6: Final answer
    x = 1,658,003,866.79

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.