Home / 31,456,063.90-47,089,617.45-18,669,987.10

Finding the Fourth Proportional to 31,456,063.90, 47,089,617.45 and 18,669,987.10

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Solution

The fourth proportional to 31,456,063.90, 47,089,617.45 and 18,669,987.10 is: 27,948,905.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,456,063.90 : 47,089,617.45 = 18,669,987.10 : x
  2. Step 2: Convert to fraction form
    31,456,063.90/47,089,617.45 = 18,669,987.10/x
  3. Step 3: Cross multiply
    31,456,063.90x = 47,089,617.45 × 18,669,987.10
  4. Step 4: Simplify right side
    31,456,063.90x = 879,162,550,335,435
  5. Step 5: Solve for x
    x = 879,162,550,335,435/31,456,063.90
  6. Step 6: Final answer
    x = 27,948,905.28

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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.