Home / 81,570,130.80-122,355,196.20-47,085,514.80

Finding the Fourth Proportional to 81,570,130.80, 122,355,196.20 and 47,085,514.80

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Solution

The fourth proportional to 81,570,130.80, 122,355,196.20 and 47,085,514.80 is: 70,628,272.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,570,130.80 : 122,355,196.20 = 47,085,514.80 : x
  2. Step 2: Convert to fraction form
    81,570,130.80/122,355,196.20 = 47,085,514.80/x
  3. Step 3: Cross multiply
    81,570,130.80x = 122,355,196.20 × 47,085,514.80
  4. Step 4: Simplify right side
    81,570,130.80x = 5,761,157,401,532,004
  5. Step 5: Solve for x
    x = 5,761,157,401,532,004/81,570,130.80
  6. Step 6: Final answer
    x = 70,628,272.20

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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.