Home / 21,538,128.60-32,263,647.30-13,426,205.40

Finding the Fourth Proportional to 21,538,128.60, 32,263,647.30 and 13,426,205.40

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Solution

The fourth proportional to 21,538,128.60, 32,263,647.30 and 13,426,205.40 is: 20,112,163.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,538,128.60 : 32,263,647.30 = 13,426,205.40 : x
  2. Step 2: Convert to fraction form
    21,538,128.60/32,263,647.30 = 13,426,205.40/x
  3. Step 3: Cross multiply
    21,538,128.60x = 32,263,647.30 × 13,426,205.40
  4. Step 4: Simplify right side
    21,538,128.60x = 433,178,355,602,955.44
  5. Step 5: Solve for x
    x = 433,178,355,602,955.44/21,538,128.60
  6. Step 6: Final answer
    x = 20,112,163.12

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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.