Home / 18,790,505.60-28,185,758.40-8,712,809.60

Finding the Fourth Proportional to 18,790,505.60, 28,185,758.40 and 8,712,809.60

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Solution

The fourth proportional to 18,790,505.60, 28,185,758.40 and 8,712,809.60 is: 13,069,214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,790,505.60 : 28,185,758.40 = 8,712,809.60 : x
  2. Step 2: Convert to fraction form
    18,790,505.60/28,185,758.40 = 8,712,809.60/x
  3. Step 3: Cross multiply
    18,790,505.60x = 28,185,758.40 × 8,712,809.60
  4. Step 4: Simplify right side
    18,790,505.60x = 245,577,146,370,800.62
  5. Step 5: Solve for x
    x = 245,577,146,370,800.62/18,790,505.60
  6. Step 6: Final answer
    x = 13,069,214.40

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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.