Home / 18,742,405.20-28,094,945.40-8,627,384.40

Finding the Fourth Proportional to 18,742,405.20, 28,094,945.40 and 8,627,384.40

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Solution

The fourth proportional to 18,742,405.20, 28,094,945.40 and 8,627,384.40 is: 12,932,486.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,742,405.20 : 28,094,945.40 = 8,627,384.40 : x
  2. Step 2: Convert to fraction form
    18,742,405.20/28,094,945.40 = 8,627,384.40/x
  3. Step 3: Cross multiply
    18,742,405.20x = 28,094,945.40 × 8,627,384.40
  4. Step 4: Simplify right side
    18,742,405.20x = 242,385,893,662,811.75
  5. Step 5: Solve for x
    x = 242,385,893,662,811.75/18,742,405.20
  6. Step 6: Final answer
    x = 12,932,486.04

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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.