Home / 18,857,580.40-28,286,370.60-9,291,642.40

Finding the Fourth Proportional to 18,857,580.40, 28,286,370.60 and 9,291,642.40

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Solution

The fourth proportional to 18,857,580.40, 28,286,370.60 and 9,291,642.40 is: 13,937,463.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857,580.40 : 28,286,370.60 = 9,291,642.40 : x
  2. Step 2: Convert to fraction form
    18,857,580.40/28,286,370.60 = 9,291,642.40/x
  3. Step 3: Cross multiply
    18,857,580.40x = 28,286,370.60 × 9,291,642.40
  4. Step 4: Simplify right side
    18,857,580.40x = 262,826,840,409,073.47
  5. Step 5: Solve for x
    x = 262,826,840,409,073.47/18,857,580.40
  6. Step 6: Final answer
    x = 13,937,463.60

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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.