Home / 12,456,471.40-18,670,710.30-6,388,858.60

Finding the Fourth Proportional to 12,456,471.40, 18,670,710.30 and 6,388,858.60

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Solution

The fourth proportional to 12,456,471.40, 18,670,710.30 and 6,388,858.60 is: 9,576,109.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456,471.40 : 18,670,710.30 = 6,388,858.60 : x
  2. Step 2: Convert to fraction form
    12,456,471.40/18,670,710.30 = 6,388,858.60/x
  3. Step 3: Cross multiply
    12,456,471.40x = 18,670,710.30 × 6,388,858.60
  4. Step 4: Simplify right side
    12,456,471.40x = 119,284,528,068,263.58
  5. Step 5: Solve for x
    x = 119,284,528,068,263.58/12,456,471.40
  6. Step 6: Final answer
    x = 9,576,109.01

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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.