Home / 1,431,503,418.56-2,147,876,909.80-776,916,908.96

Finding the Fourth Proportional to 1,431,503,418.56, 2,147,876,909.80 and 776,916,908.96

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Solution

The fourth proportional to 1,431,503,418.56, 2,147,876,909.80 and 776,916,908.96 is: 1,165,712,821.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,503,418.56 : 2,147,876,909.80 = 776,916,908.96 : x
  2. Step 2: Convert to fraction form
    1,431,503,418.56/2,147,876,909.80 = 776,916,908.96/x
  3. Step 3: Cross multiply
    1,431,503,418.56x = 2,147,876,909.80 × 776,916,908.96
  4. Step 4: Simplify right side
    1,431,503,418.56x = 1,668,721,889,588,372,992
  5. Step 5: Solve for x
    x = 1,668,721,889,588,372,992/1,431,503,418.56
  6. Step 6: Final answer
    x = 1,165,712,821.89

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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.