Home / 1,279,431,425.24-1,919,147,134.62-310,083,041.24

Finding the Fourth Proportional to 1,279,431,425.24, 1,919,147,134.62 and 310,083,041.24

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Solution

The fourth proportional to 1,279,431,425.24, 1,919,147,134.62 and 310,083,041.24 is: 465,124,561.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,431,425.24 : 1,919,147,134.62 = 310,083,041.24 : x
  2. Step 2: Convert to fraction form
    1,279,431,425.24/1,919,147,134.62 = 310,083,041.24/x
  3. Step 3: Cross multiply
    1,279,431,425.24x = 1,919,147,134.62 × 310,083,041.24
  4. Step 4: Simplify right side
    1,279,431,425.24x = 595,094,980,090,001,280
  5. Step 5: Solve for x
    x = 595,094,980,090,001,280/1,279,431,425.24
  6. Step 6: Final answer
    x = 465,124,561.07

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Double scale
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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.