Home / 669,137,708.28-1,003,316,838.96-259,715,561.88

Finding the Fourth Proportional to 669,137,708.28, 1,003,316,838.96 and 259,715,561.88

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Solution

The fourth proportional to 669,137,708.28, 1,003,316,838.96 and 259,715,561.88 is: 389,422,077.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,137,708.28 : 1,003,316,838.96 = 259,715,561.88 : x
  2. Step 2: Convert to fraction form
    669,137,708.28/1,003,316,838.96 = 259,715,561.88/x
  3. Step 3: Cross multiply
    669,137,708.28x = 1,003,316,838.96 × 259,715,561.88
  4. Step 4: Simplify right side
    669,137,708.28x = 260,576,996,574,161,888
  5. Step 5: Solve for x
    x = 260,576,996,574,161,888/669,137,708.28
  6. Step 6: Final answer
    x = 389,422,077.62

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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.