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Finding the Fourth Proportional to 1,319,975,596.76, 1,978,732,507.13 and 445,965,735.29

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Solution

The fourth proportional to 1,319,975,596.76, 1,978,732,507.13 and 445,965,735.29 is: 668,532,736.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,975,596.76 : 1,978,732,507.13 = 445,965,735.29 : x
  2. Step 2: Convert to fraction form
    1,319,975,596.76/1,978,732,507.13 = 445,965,735.29/x
  3. Step 3: Cross multiply
    1,319,975,596.76x = 1,978,732,507.13 × 445,965,735.29
  4. Step 4: Simplify right side
    1,319,975,596.76x = 882,446,897,482,225,792
  5. Step 5: Solve for x
    x = 882,446,897,482,225,792/1,319,975,596.76
  6. Step 6: Final answer
    x = 668,532,736.25

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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.