Home / 13,145,628.69-18,140,632.74-7,344,454.05

Finding the Fourth Proportional to 13,145,628.69, 18,140,632.74 and 7,344,454.05

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Solution

The fourth proportional to 13,145,628.69, 18,140,632.74 and 7,344,454.05 is: 10,135,159.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145,628.69 : 18,140,632.74 = 7,344,454.05 : x
  2. Step 2: Convert to fraction form
    13,145,628.69/18,140,632.74 = 7,344,454.05/x
  3. Step 3: Cross multiply
    13,145,628.69x = 18,140,632.74 × 7,344,454.05
  4. Step 4: Simplify right side
    13,145,628.69x = 133,233,043,596,855.58
  5. Step 5: Solve for x
    x = 133,233,043,596,855.58/13,145,628.69
  6. Step 6: Final answer
    x = 10,135,159.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.