Home / 31,913,476.75-47,870,216.21-7,978,948.75

Finding the Fourth Proportional to 31,913,476.75, 47,870,216.21 and 7,978,948.75

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Solution

The fourth proportional to 31,913,476.75, 47,870,216.21 and 7,978,948.75 is: 11,968,423.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,913,476.75 : 47,870,216.21 = 7,978,948.75 : x
  2. Step 2: Convert to fraction form
    31,913,476.75/47,870,216.21 = 7,978,948.75/x
  3. Step 3: Cross multiply
    31,913,476.75x = 47,870,216.21 × 7,978,948.75
  4. Step 4: Simplify right side
    31,913,476.75x = 381,954,001,751,114.50
  5. Step 5: Solve for x
    x = 381,954,001,751,114.50/31,913,476.75
  6. Step 6: Final answer
    x = 11,968,423.40

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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.