Home / 10,778,990.60-16,168,485.90-9,786,967.40

Finding the Fourth Proportional to 10,778,990.60, 16,168,485.90 and 9,786,967.40

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Solution

The fourth proportional to 10,778,990.60, 16,168,485.90 and 9,786,967.40 is: 14,680,451.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778,990.60 : 16,168,485.90 = 9,786,967.40 : x
  2. Step 2: Convert to fraction form
    10,778,990.60/16,168,485.90 = 9,786,967.40/x
  3. Step 3: Cross multiply
    10,778,990.60x = 16,168,485.90 × 9,786,967.40
  4. Step 4: Simplify right side
    10,778,990.60x = 158,240,444,410,659.66
  5. Step 5: Solve for x
    x = 158,240,444,410,659.66/10,778,990.60
  6. Step 6: Final answer
    x = 14,680,451.10

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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.