Home / 4,812,912.40-7,219,368.60-3,868,128.40

Finding the Fourth Proportional to 4,812,912.40, 7,219,368.60 and 3,868,128.40

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Solution

The fourth proportional to 4,812,912.40, 7,219,368.60 and 3,868,128.40 is: 5,802,192.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812,912.40 : 7,219,368.60 = 3,868,128.40 : x
  2. Step 2: Convert to fraction form
    4,812,912.40/7,219,368.60 = 3,868,128.40/x
  3. Step 3: Cross multiply
    4,812,912.40x = 7,219,368.60 × 3,868,128.40
  4. Step 4: Simplify right side
    4,812,912.40x = 27,925,444,711,728.24
  5. Step 5: Solve for x
    x = 27,925,444,711,728.24/4,812,912.40
  6. Step 6: Final answer
    x = 5,802,192.60

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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.