Home / 15,660,115.80-21,946,557-15,660,115.80

Finding the Fourth Proportional to 15,660,115.80, 21,946,557 and 15,660,115.80

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Solution

The fourth proportional to 15,660,115.80, 21,946,557 and 15,660,115.80 is: 21,946,557

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,660,115.80 : 21,946,557 = 15,660,115.80 : x
  2. Step 2: Convert to fraction form
    15,660,115.80/21,946,557 = 15,660,115.80/x
  3. Step 3: Cross multiply
    15,660,115.80x = 21,946,557 × 15,660,115.80
  4. Step 4: Simplify right side
    15,660,115.80x = 343,685,624,031,300.62
  5. Step 5: Solve for x
    x = 343,685,624,031,300.62/15,660,115.80
  6. Step 6: Final answer
    x = 21,946,557

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.