Home / 21,046,780.80-31,559,673.60-9,674,380.80

Finding the Fourth Proportional to 21,046,780.80, 31,559,673.60 and 9,674,380.80

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Solution

The fourth proportional to 21,046,780.80, 31,559,673.60 and 9,674,380.80 is: 14,506,745.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,046,780.80 : 31,559,673.60 = 9,674,380.80 : x
  2. Step 2: Convert to fraction form
    21,046,780.80/31,559,673.60 = 9,674,380.80/x
  3. Step 3: Cross multiply
    21,046,780.80x = 31,559,673.60 × 9,674,380.80
  4. Step 4: Simplify right side
    21,046,780.80x = 305,320,300,330,106.94
  5. Step 5: Solve for x
    x = 305,320,300,330,106.94/21,046,780.80
  6. Step 6: Final answer
    x = 14,506,745.86

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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.