Home / 13,772,039.21-20,634,118.45-9,664,649.09

Finding the Fourth Proportional to 13,772,039.21, 20,634,118.45 and 9,664,649.09

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Solution

The fourth proportional to 13,772,039.21, 20,634,118.45 and 9,664,649.09 is: 14,480,173.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772,039.21 : 20,634,118.45 = 9,664,649.09 : x
  2. Step 2: Convert to fraction form
    13,772,039.21/20,634,118.45 = 9,664,649.09/x
  3. Step 3: Cross multiply
    13,772,039.21x = 20,634,118.45 × 9,664,649.09
  4. Step 4: Simplify right side
    13,772,039.21x = 199,421,513,973,412.53
  5. Step 5: Solve for x
    x = 199,421,513,973,412.53/13,772,039.21
  6. Step 6: Final answer
    x = 14,480,173.27

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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.