Home / 18,683,407.40-28,025,111.10-8,586,028.40

Finding the Fourth Proportional to 18,683,407.40, 28,025,111.10 and 8,586,028.40

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Solution

The fourth proportional to 18,683,407.40, 28,025,111.10 and 8,586,028.40 is: 12,879,042.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683,407.40 : 28,025,111.10 = 8,586,028.40 : x
  2. Step 2: Convert to fraction form
    18,683,407.40/28,025,111.10 = 8,586,028.40/x
  3. Step 3: Cross multiply
    18,683,407.40x = 28,025,111.10 × 8,586,028.40
  4. Step 4: Simplify right side
    18,683,407.40x = 240,624,399,817,755.25
  5. Step 5: Solve for x
    x = 240,624,399,817,755.25/18,683,407.40
  6. Step 6: Final answer
    x = 12,879,042.60

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1.5x scale

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.