Home / 7,870,000.40-11,808,431.35-2,756,098.81

Finding the Fourth Proportional to 7,870,000.40, 11,808,431.35 and 2,756,098.81

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Solution

The fourth proportional to 7,870,000.40, 11,808,431.35 and 2,756,098.81 is: 4,135,349.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,870,000.40 : 11,808,431.35 = 2,756,098.81 : x
  2. Step 2: Convert to fraction form
    7,870,000.40/11,808,431.35 = 2,756,098.81/x
  3. Step 3: Cross multiply
    7,870,000.40x = 11,808,431.35 × 2,756,098.81
  4. Step 4: Simplify right side
    7,870,000.40x = 32,545,203,591,701.69
  5. Step 5: Solve for x
    x = 32,545,203,591,701.69/7,870,000.40
  6. Step 6: Final answer
    x = 4,135,349.67

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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.