Home / 7,918,956.80-11,903,318.40-7,769,657.60

Finding the Fourth Proportional to 7,918,956.80, 11,903,318.40 and 7,769,657.60

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Solution

The fourth proportional to 7,918,956.80, 11,903,318.40 and 7,769,657.60 is: 11,678,900.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918,956.80 : 11,903,318.40 = 7,769,657.60 : x
  2. Step 2: Convert to fraction form
    7,918,956.80/11,903,318.40 = 7,769,657.60/x
  3. Step 3: Cross multiply
    7,918,956.80x = 11,903,318.40 × 7,769,657.60
  4. Step 4: Simplify right side
    7,918,956.80x = 92,484,708,271,779.84
  5. Step 5: Solve for x
    x = 92,484,708,271,779.84/7,918,956.80
  6. Step 6: Final answer
    x = 11,678,900.47

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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.