Home / 12,355,285.80-18,516,788.16-6,890,162.52

Finding the Fourth Proportional to 12,355,285.80, 18,516,788.16 and 6,890,162.52

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Solution

The fourth proportional to 12,355,285.80, 18,516,788.16 and 6,890,162.52 is: 10,326,242.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355,285.80 : 18,516,788.16 = 6,890,162.52 : x
  2. Step 2: Convert to fraction form
    12,355,285.80/18,516,788.16 = 6,890,162.52/x
  3. Step 3: Cross multiply
    12,355,285.80x = 18,516,788.16 × 6,890,162.52
  4. Step 4: Simplify right side
    12,355,285.80x = 127,583,679,770,811.75
  5. Step 5: Solve for x
    x = 127,583,679,770,811.75/12,355,285.80
  6. Step 6: Final answer
    x = 10,326,242.70

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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.