Home / 20,759,576.40-31,139,200.58-5,406,836.40

Finding the Fourth Proportional to 20,759,576.40, 31,139,200.58 and 5,406,836.40

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Solution

The fourth proportional to 20,759,576.40, 31,139,200.58 and 5,406,836.40 is: 8,110,211.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759,576.40 : 31,139,200.58 = 5,406,836.40 : x
  2. Step 2: Convert to fraction form
    20,759,576.40/31,139,200.58 = 5,406,836.40/x
  3. Step 3: Cross multiply
    20,759,576.40x = 31,139,200.58 × 5,406,836.40
  4. Step 4: Simplify right side
    20,759,576.40x = 168,364,563,135,810.94
  5. Step 5: Solve for x
    x = 168,364,563,135,810.94/20,759,576.40
  6. Step 6: Final answer
    x = 8,110,211.88

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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.