Home / 21,030,266.40-31,527,903.60-8,909,037.60

Finding the Fourth Proportional to 21,030,266.40, 31,527,903.60 and 8,909,037.60

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Solution

The fourth proportional to 21,030,266.40, 31,527,903.60 and 8,909,037.60 is: 13,356,144.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,030,266.40 : 31,527,903.60 = 8,909,037.60 : x
  2. Step 2: Convert to fraction form
    21,030,266.40/31,527,903.60 = 8,909,037.60/x
  3. Step 3: Cross multiply
    21,030,266.40x = 31,527,903.60 × 8,909,037.60
  4. Step 4: Simplify right side
    21,030,266.40x = 280,883,278,621,575.38
  5. Step 5: Solve for x
    x = 280,883,278,621,575.38/21,030,266.40
  6. Step 6: Final answer
    x = 13,356,144.58

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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.