Home / 31,456,129.90-47,089,716.45-18,670,053.10

Finding the Fourth Proportional to 31,456,129.90, 47,089,716.45 and 18,670,053.10

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Solution

The fourth proportional to 31,456,129.90, 47,089,716.45 and 18,670,053.10 is: 27,949,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,456,129.90 : 47,089,716.45 = 18,670,053.10 : x
  2. Step 2: Convert to fraction form
    31,456,129.90/47,089,716.45 = 18,670,053.10/x
  3. Step 3: Cross multiply
    31,456,129.90x = 47,089,716.45 × 18,670,053.10
  4. Step 4: Simplify right side
    31,456,129.90x = 879,167,506,585,443.62
  5. Step 5: Solve for x
    x = 879,167,506,585,443.62/31,456,129.90
  6. Step 6: Final answer
    x = 27,949,004.20

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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.