Home / 21,388,121.40-32,082,182.10-7,007,721.60

Finding the Fourth Proportional to 21,388,121.40, 32,082,182.10 and 7,007,721.60

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Solution

The fourth proportional to 21,388,121.40, 32,082,182.10 and 7,007,721.60 is: 10,511,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,388,121.40 : 32,082,182.10 = 7,007,721.60 : x
  2. Step 2: Convert to fraction form
    21,388,121.40/32,082,182.10 = 7,007,721.60/x
  3. Step 3: Cross multiply
    21,388,121.40x = 32,082,182.10 × 7,007,721.60
  4. Step 4: Simplify right side
    21,388,121.40x = 224,823,000,477,303.34
  5. Step 5: Solve for x
    x = 224,823,000,477,303.34/21,388,121.40
  6. Step 6: Final answer
    x = 10,511,582.40

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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.