Home / 13,611,095.56-18,783,737.22-7,810,938.28

Finding the Fourth Proportional to 13,611,095.56, 18,783,737.22 and 7,810,938.28

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Solution

The fourth proportional to 13,611,095.56, 18,783,737.22 and 7,810,938.28 is: 10,779,338.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611,095.56 : 18,783,737.22 = 7,810,938.28 : x
  2. Step 2: Convert to fraction form
    13,611,095.56/18,783,737.22 = 7,810,938.28/x
  3. Step 3: Cross multiply
    13,611,095.56x = 18,783,737.22 × 7,810,938.28
  4. Step 4: Simplify right side
    13,611,095.56x = 146,718,612,093,158.78
  5. Step 5: Solve for x
    x = 146,718,612,093,158.78/13,611,095.56
  6. Step 6: Final answer
    x = 10,779,338.92

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1.5x scale

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.