Home / 18,819,622.40-28,210,013.28-7,896,155.41

Finding the Fourth Proportional to 18,819,622.40, 28,210,013.28 and 7,896,155.41

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Solution

The fourth proportional to 18,819,622.40, 28,210,013.28 and 7,896,155.41 is: 11,836,084.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,819,622.40 : 28,210,013.28 = 7,896,155.41 : x
  2. Step 2: Convert to fraction form
    18,819,622.40/28,210,013.28 = 7,896,155.41/x
  3. Step 3: Cross multiply
    18,819,622.40x = 28,210,013.28 × 7,896,155.41
  4. Step 4: Simplify right side
    18,819,622.40x = 222,750,649,013,102.50
  5. Step 5: Solve for x
    x = 222,750,649,013,102.50/18,819,622.40
  6. Step 6: Final answer
    x = 11,836,084.92

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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.