Home / 21,731,424.40-32,597,136.60-13,122,080.20

Finding the Fourth Proportional to 21,731,424.40, 32,597,136.60 and 13,122,080.20

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Solution

The fourth proportional to 21,731,424.40, 32,597,136.60 and 13,122,080.20 is: 19,683,120.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,731,424.40 : 32,597,136.60 = 13,122,080.20 : x
  2. Step 2: Convert to fraction form
    21,731,424.40/32,597,136.60 = 13,122,080.20/x
  3. Step 3: Cross multiply
    21,731,424.40x = 32,597,136.60 × 13,122,080.20
  4. Step 4: Simplify right side
    21,731,424.40x = 427,742,240,755,555.31
  5. Step 5: Solve for x
    x = 427,742,240,755,555.31/21,731,424.40
  6. Step 6: Final answer
    x = 19,683,120.30

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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.