Home / 18,384,157.90-25,368,968.76-11,042,300.50

Finding the Fourth Proportional to 18,384,157.90, 25,368,968.76 and 11,042,300.50

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Solution

The fourth proportional to 18,384,157.90, 25,368,968.76 and 11,042,300.50 is: 15,237,672.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,384,157.90 : 25,368,968.76 = 11,042,300.50 : x
  2. Step 2: Convert to fraction form
    18,384,157.90/25,368,968.76 = 11,042,300.50/x
  3. Step 3: Cross multiply
    18,384,157.90x = 25,368,968.76 × 11,042,300.50
  4. Step 4: Simplify right side
    18,384,157.90x = 280,131,776,423,032.41
  5. Step 5: Solve for x
    x = 280,131,776,423,032.41/18,384,157.90
  6. Step 6: Final answer
    x = 15,237,672.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.