Home / 1,319,975,630.76-1,978,732,558.08-445,965,769.32

Finding the Fourth Proportional to 1,319,975,630.76, 1,978,732,558.08 and 445,965,769.32

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Solution

The fourth proportional to 1,319,975,630.76, 1,978,732,558.08 and 445,965,769.32 is: 668,532,787.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,975,630.76 : 1,978,732,558.08 = 445,965,769.32 : x
  2. Step 2: Convert to fraction form
    1,319,975,630.76/1,978,732,558.08 = 445,965,769.32/x
  3. Step 3: Cross multiply
    1,319,975,630.76x = 1,978,732,558.08 × 445,965,769.32
  4. Step 4: Simplify right side
    1,319,975,630.76x = 882,446,987,542,678,784
  5. Step 5: Solve for x
    x = 882,446,987,542,678,784/1,319,975,630.76
  6. Step 6: Final answer
    x = 668,532,787.26

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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.