Home / 86,211,458.44-129,334,223.20-31,624,550.80

Finding the Fourth Proportional to 86,211,458.44, 129,334,223.20 and 31,624,550.80

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Solution

The fourth proportional to 86,211,458.44, 129,334,223.20 and 31,624,550.80 is: 47,443,075.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,211,458.44 : 129,334,223.20 = 31,624,550.80 : x
  2. Step 2: Convert to fraction form
    86,211,458.44/129,334,223.20 = 31,624,550.80/x
  3. Step 3: Cross multiply
    86,211,458.44x = 129,334,223.20 × 31,624,550.80
  4. Step 4: Simplify right side
    86,211,458.44x = 4,090,136,711,766,939
  5. Step 5: Solve for x
    x = 4,090,136,711,766,939/86,211,458.44
  6. Step 6: Final answer
    x = 47,443,075.27

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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.