Home / 1,328,052,883.16-1,991,942,446.08-442,642,574.36

Finding the Fourth Proportional to 1,328,052,883.16, 1,991,942,446.08 and 442,642,574.36

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Solution

The fourth proportional to 1,328,052,883.16, 1,991,942,446.08 and 442,642,574.36 is: 663,918,239.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,052,883.16 : 1,991,942,446.08 = 442,642,574.36 : x
  2. Step 2: Convert to fraction form
    1,328,052,883.16/1,991,942,446.08 = 442,642,574.36/x
  3. Step 3: Cross multiply
    1,328,052,883.16x = 1,991,942,446.08 × 442,642,574.36
  4. Step 4: Simplify right side
    1,328,052,883.16x = 881,718,532,309,806,720
  5. Step 5: Solve for x
    x = 881,718,532,309,806,720/1,328,052,883.16
  6. Step 6: Final answer
    x = 663,918,239.62

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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.