Home / 18,879,123.54-28,307,295.26-7,208,257.08

Finding the Fourth Proportional to 18,879,123.54, 28,307,295.26 and 7,208,257.08

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Solution

The fourth proportional to 18,879,123.54, 28,307,295.26 and 7,208,257.08 is: 10,808,036.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,879,123.54 : 28,307,295.26 = 7,208,257.08 : x
  2. Step 2: Convert to fraction form
    18,879,123.54/28,307,295.26 = 7,208,257.08/x
  3. Step 3: Cross multiply
    18,879,123.54x = 28,307,295.26 × 7,208,257.08
  4. Step 4: Simplify right side
    18,879,123.54x = 204,046,261,473,545.47
  5. Step 5: Solve for x
    x = 204,046,261,473,545.47/18,879,123.54
  6. Step 6: Final answer
    x = 10,808,036.77

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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.