Home / 6,609,865.98-9,913,865.58-2,121,558.78

Finding the Fourth Proportional to 6,609,865.98, 9,913,865.58 and 2,121,558.78

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Solution

The fourth proportional to 6,609,865.98, 9,913,865.58 and 2,121,558.78 is: 3,182,038.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609,865.98 : 9,913,865.58 = 2,121,558.78 : x
  2. Step 2: Convert to fraction form
    6,609,865.98/9,913,865.58 = 2,121,558.78/x
  3. Step 3: Cross multiply
    6,609,865.98x = 9,913,865.58 × 2,121,558.78
  4. Step 4: Simplify right side
    6,609,865.98x = 21,032,848,564,988.79
  5. Step 5: Solve for x
    x = 21,032,848,564,988.79/6,609,865.98
  6. Step 6: Final answer
    x = 3,182,038.58

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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.