Home / 7,143,139.20-10,716,436.80-2,094,614.40

Finding the Fourth Proportional to 7,143,139.20, 10,716,436.80 and 2,094,614.40

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Solution

The fourth proportional to 7,143,139.20, 10,716,436.80 and 2,094,614.40 is: 3,142,428.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143,139.20 : 10,716,436.80 = 2,094,614.40 : x
  2. Step 2: Convert to fraction form
    7,143,139.20/10,716,436.80 = 2,094,614.40/x
  3. Step 3: Cross multiply
    7,143,139.20x = 10,716,436.80 × 2,094,614.40
  4. Step 4: Simplify right side
    7,143,139.20x = 22,446,802,837,969.92
  5. Step 5: Solve for x
    x = 22,446,802,837,969.92/7,143,139.20
  6. Step 6: Final answer
    x = 3,142,428.31

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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.