Home / 1,272,113,382.48-1,908,212,589-351,912,662.16

Finding the Fourth Proportional to 1,272,113,382.48, 1,908,212,589 and 351,912,662.16

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Solution

The fourth proportional to 1,272,113,382.48, 1,908,212,589 and 351,912,662.16 is: 527,880,754.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,113,382.48 : 1,908,212,589 = 351,912,662.16 : x
  2. Step 2: Convert to fraction form
    1,272,113,382.48/1,908,212,589 = 351,912,662.16/x
  3. Step 3: Cross multiply
    1,272,113,382.48x = 1,908,212,589 × 351,912,662.16
  4. Step 4: Simplify right side
    1,272,113,382.48x = 671,524,172,162,215,936
  5. Step 5: Solve for x
    x = 671,524,172,162,215,936/1,272,113,382.48
  6. Step 6: Final answer
    x = 527,880,754.51

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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.