Home / 20,807,431.40-31,211,147.10-6,624,007.40

Finding the Fourth Proportional to 20,807,431.40, 31,211,147.10 and 6,624,007.40

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Solution

The fourth proportional to 20,807,431.40, 31,211,147.10 and 6,624,007.40 is: 9,936,011.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,807,431.40 : 31,211,147.10 = 6,624,007.40 : x
  2. Step 2: Convert to fraction form
    20,807,431.40/31,211,147.10 = 6,624,007.40/x
  3. Step 3: Cross multiply
    20,807,431.40x = 31,211,147.10 × 6,624,007.40
  4. Step 4: Simplify right side
    20,807,431.40x = 206,742,869,352,888.56
  5. Step 5: Solve for x
    x = 206,742,869,352,888.56/20,807,431.40
  6. Step 6: Final answer
    x = 9,936,011.10

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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.