Home / 1,319,975,618.76-1,978,732,540.08-445,965,757.29

Finding the Fourth Proportional to 1,319,975,618.76, 1,978,732,540.08 and 445,965,757.29

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Solution

The fourth proportional to 1,319,975,618.76, 1,978,732,540.08 and 445,965,757.29 is: 668,532,769.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,975,618.76 : 1,978,732,540.08 = 445,965,757.29 : x
  2. Step 2: Convert to fraction form
    1,319,975,618.76/1,978,732,540.08 = 445,965,757.29/x
  3. Step 3: Cross multiply
    1,319,975,618.76x = 1,978,732,540.08 × 445,965,757.29
  4. Step 4: Simplify right side
    1,319,975,618.76x = 882,446,955,711,142,528
  5. Step 5: Solve for x
    x = 882,446,955,711,142,528/1,319,975,618.76
  6. Step 6: Final answer
    x = 668,532,769.22

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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.