Home / 18,683,638.91-25,783,437.75-10,423,702.47

Finding the Fourth Proportional to 18,683,638.91, 25,783,437.75 and 10,423,702.47

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Solution

The fourth proportional to 18,683,638.91, 25,783,437.75 and 10,423,702.47 is: 14,384,718.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683,638.91 : 25,783,437.75 = 10,423,702.47 : x
  2. Step 2: Convert to fraction form
    18,683,638.91/25,783,437.75 = 10,423,702.47/x
  3. Step 3: Cross multiply
    18,683,638.91x = 25,783,437.75 × 10,423,702.47
  4. Step 4: Simplify right side
    18,683,638.91x = 268,758,883,759,766.25
  5. Step 5: Solve for x
    x = 268,758,883,759,766.25/18,683,638.91
  6. Step 6: Final answer
    x = 14,384,718.37

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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.