Home / 13,286,038.40-19,928,020.80-5,197,443.20

Finding the Fourth Proportional to 13,286,038.40, 19,928,020.80 and 5,197,443.20

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Solution

The fourth proportional to 13,286,038.40, 19,928,020.80 and 5,197,443.20 is: 7,795,759.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,038.40 : 19,928,020.80 = 5,197,443.20 : x
  2. Step 2: Convert to fraction form
    13,286,038.40/19,928,020.80 = 5,197,443.20/x
  3. Step 3: Cross multiply
    13,286,038.40x = 19,928,020.80 × 5,197,443.20
  4. Step 4: Simplify right side
    13,286,038.40x = 103,574,756,196,418.56
  5. Step 5: Solve for x
    x = 103,574,756,196,418.56/13,286,038.40
  6. Step 6: Final answer
    x = 7,795,759.21

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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.