Home / 18,861,667.17-28,303,479.50-7,931,066.73

Finding the Fourth Proportional to 18,861,667.17, 28,303,479.50 and 7,931,066.73

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Solution

The fourth proportional to 18,861,667.17, 28,303,479.50 and 7,931,066.73 is: 11,901,216.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,861,667.17 : 28,303,479.50 = 7,931,066.73 : x
  2. Step 2: Convert to fraction form
    18,861,667.17/28,303,479.50 = 7,931,066.73/x
  3. Step 3: Cross multiply
    18,861,667.17x = 28,303,479.50 × 7,931,066.73
  4. Step 4: Simplify right side
    18,861,667.17x = 224,476,784,566,031.72
  5. Step 5: Solve for x
    x = 224,476,784,566,031.72/18,861,667.17
  6. Step 6: Final answer
    x = 11,901,216.50

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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.