Home / 18,829,985.20-28,247,602.20-8,047,200.40

Finding the Fourth Proportional to 18,829,985.20, 28,247,602.20 and 8,047,200.40

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Solution

The fourth proportional to 18,829,985.20, 28,247,602.20 and 8,047,200.40 is: 12,071,922.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829,985.20 : 28,247,602.20 = 8,047,200.40 : x
  2. Step 2: Convert to fraction form
    18,829,985.20/28,247,602.20 = 8,047,200.40/x
  3. Step 3: Cross multiply
    18,829,985.20x = 28,247,602.20 × 8,047,200.40
  4. Step 4: Simplify right side
    18,829,985.20x = 227,314,115,722,880.88
  5. Step 5: Solve for x
    x = 227,314,115,722,880.88/18,829,985.20
  6. Step 6: Final answer
    x = 12,071,922.17

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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.