Home / 13,189,875.41-18,202,216.44-7,683,106.61

Finding the Fourth Proportional to 13,189,875.41, 18,202,216.44 and 7,683,106.61

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Solution

The fourth proportional to 13,189,875.41, 18,202,216.44 and 7,683,106.61 is: 10,602,796.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,189,875.41 : 18,202,216.44 = 7,683,106.61 : x
  2. Step 2: Convert to fraction form
    13,189,875.41/18,202,216.44 = 7,683,106.61/x
  3. Step 3: Cross multiply
    13,189,875.41x = 18,202,216.44 × 7,683,106.61
  4. Step 4: Simplify right side
    13,189,875.41x = 139,849,569,355,803.61
  5. Step 5: Solve for x
    x = 139,849,569,355,803.61/13,189,875.41
  6. Step 6: Final answer
    x = 10,602,796.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.