Home / 18,857,579.40-28,286,369.10-9,291,641.40

Finding the Fourth Proportional to 18,857,579.40, 28,286,369.10 and 9,291,641.40

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Solution

The fourth proportional to 18,857,579.40, 28,286,369.10 and 9,291,641.40 is: 13,937,462.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857,579.40 : 28,286,369.10 = 9,291,641.40 : x
  2. Step 2: Convert to fraction form
    18,857,579.40/28,286,369.10 = 9,291,641.40/x
  3. Step 3: Cross multiply
    18,857,579.40x = 28,286,369.10 × 9,291,641.40
  4. Step 4: Simplify right side
    18,857,579.40x = 262,826,798,185,240.75
  5. Step 5: Solve for x
    x = 262,826,798,185,240.75/18,857,579.40
  6. Step 6: Final answer
    x = 13,937,462.10

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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.