Home / 28,796,521.60-43,194,782.40-21,143,771.20

Finding the Fourth Proportional to 28,796,521.60, 43,194,782.40 and 21,143,771.20

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Solution

The fourth proportional to 28,796,521.60, 43,194,782.40 and 21,143,771.20 is: 31,715,656.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,796,521.60 : 43,194,782.40 = 21,143,771.20 : x
  2. Step 2: Convert to fraction form
    28,796,521.60/43,194,782.40 = 21,143,771.20/x
  3. Step 3: Cross multiply
    28,796,521.60x = 43,194,782.40 × 21,143,771.20
  4. Step 4: Simplify right side
    28,796,521.60x = 913,300,596,099,386.88
  5. Step 5: Solve for x
    x = 913,300,596,099,386.88/28,796,521.60
  6. Step 6: Final answer
    x = 31,715,656.80

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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.