Home / 10,905,705.20-16,393,987.20-9,346,811.60

Finding the Fourth Proportional to 10,905,705.20, 16,393,987.20 and 9,346,811.60

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Solution

The fourth proportional to 10,905,705.20, 16,393,987.20 and 9,346,811.60 is: 14,050,582.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905,705.20 : 16,393,987.20 = 9,346,811.60 : x
  2. Step 2: Convert to fraction form
    10,905,705.20/16,393,987.20 = 9,346,811.60/x
  3. Step 3: Cross multiply
    10,905,705.20x = 16,393,987.20 × 9,346,811.60
  4. Step 4: Simplify right side
    10,905,705.20x = 153,231,509,731,211.50
  5. Step 5: Solve for x
    x = 153,231,509,731,211.50/10,905,705.20
  6. Step 6: Final answer
    x = 14,050,582.42

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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.