Home / 12,671,800.40-18,965,710.20-11,664,030.80

Finding the Fourth Proportional to 12,671,800.40, 18,965,710.20 and 11,664,030.80

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Solution

The fourth proportional to 12,671,800.40, 18,965,710.20 and 11,664,030.80 is: 17,457,395.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671,800.40 : 18,965,710.20 = 11,664,030.80 : x
  2. Step 2: Convert to fraction form
    12,671,800.40/18,965,710.20 = 11,664,030.80/x
  3. Step 3: Cross multiply
    12,671,800.40x = 18,965,710.20 × 11,664,030.80
  4. Step 4: Simplify right side
    12,671,800.40x = 221,216,627,916,674.16
  5. Step 5: Solve for x
    x = 221,216,627,916,674.16/12,671,800.40
  6. Step 6: Final answer
    x = 17,457,395.23

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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.