Home / 12,448,931.20-18,672,014.40-10,201,148.80

Finding the Fourth Proportional to 12,448,931.20, 18,672,014.40 and 10,201,148.80

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Solution

The fourth proportional to 12,448,931.20, 18,672,014.40 and 10,201,148.80 is: 15,300,590.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,448,931.20 : 18,672,014.40 = 10,201,148.80 : x
  2. Step 2: Convert to fraction form
    12,448,931.20/18,672,014.40 = 10,201,148.80/x
  3. Step 3: Cross multiply
    12,448,931.20x = 18,672,014.40 × 10,201,148.80
  4. Step 4: Simplify right side
    12,448,931.20x = 190,475,997,290,142.72
  5. Step 5: Solve for x
    x = 190,475,997,290,142.72/12,448,931.20
  6. Step 6: Final answer
    x = 15,300,590.41

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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.