Home / 9,513,145.40-13,128,074.06-5,162,121.06

Finding the Fourth Proportional to 9,513,145.40, 13,128,074.06 and 5,162,121.06

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Solution

The fourth proportional to 9,513,145.40, 13,128,074.06 and 5,162,121.06 is: 7,123,690.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,513,145.40 : 13,128,074.06 = 5,162,121.06 : x
  2. Step 2: Convert to fraction form
    9,513,145.40/13,128,074.06 = 5,162,121.06/x
  3. Step 3: Cross multiply
    9,513,145.40x = 13,128,074.06 × 5,162,121.06
  4. Step 4: Simplify right side
    9,513,145.40x = 67,768,707,582,365.70
  5. Step 5: Solve for x
    x = 67,768,707,582,365.70/9,513,145.40
  6. Step 6: Final answer
    x = 7,123,690.93

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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.