Home / 13,286,522.40-19,928,746.80-5,197,927.20

Finding the Fourth Proportional to 13,286,522.40, 19,928,746.80 and 5,197,927.20

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Solution

The fourth proportional to 13,286,522.40, 19,928,746.80 and 5,197,927.20 is: 7,796,485.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,522.40 : 19,928,746.80 = 5,197,927.20 : x
  2. Step 2: Convert to fraction form
    13,286,522.40/19,928,746.80 = 5,197,927.20/x
  3. Step 3: Cross multiply
    13,286,522.40x = 19,928,746.80 × 5,197,927.20
  4. Step 4: Simplify right side
    13,286,522.40x = 103,588,175,053,632.97
  5. Step 5: Solve for x
    x = 103,588,175,053,632.97/13,286,522.40
  6. Step 6: Final answer
    x = 7,796,485.19

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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.