Home / 12,912,089.42-19,370,828.21-6,845,173.71

Finding the Fourth Proportional to 12,912,089.42, 19,370,828.21 and 6,845,173.71

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Solution

The fourth proportional to 12,912,089.42, 19,370,828.21 and 6,845,173.71 is: 10,269,188.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912,089.42 : 19,370,828.21 = 6,845,173.71 : x
  2. Step 2: Convert to fraction form
    12,912,089.42/19,370,828.21 = 6,845,173.71/x
  3. Step 3: Cross multiply
    12,912,089.42x = 19,370,828.21 × 6,845,173.71
  4. Step 4: Simplify right side
    12,912,089.42x = 132,596,683,969,792.48
  5. Step 5: Solve for x
    x = 132,596,683,969,792.48/12,912,089.42
  6. Step 6: Final answer
    x = 10,269,188.80

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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.