Home / 31,455,895.90-47,089,365.45-18,669,819.10

Finding the Fourth Proportional to 31,455,895.90, 47,089,365.45 and 18,669,819.10

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Solution

The fourth proportional to 31,455,895.90, 47,089,365.45 and 18,669,819.10 is: 27,948,653.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,455,895.90 : 47,089,365.45 = 18,669,819.10 : x
  2. Step 2: Convert to fraction form
    31,455,895.90/47,089,365.45 = 18,669,819.10/x
  3. Step 3: Cross multiply
    31,455,895.90x = 47,089,365.45 × 18,669,819.10
  4. Step 4: Simplify right side
    31,455,895.90x = 879,149,934,485,290.25
  5. Step 5: Solve for x
    x = 879,149,934,485,290.25/31,455,895.90
  6. Step 6: Final answer
    x = 27,948,653.48

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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.