Home / 28,009,503.51-38,653,283.34-15,620,379.09

Finding the Fourth Proportional to 28,009,503.51, 38,653,283.34 and 15,620,379.09

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Solution

The fourth proportional to 28,009,503.51, 38,653,283.34 and 15,620,379.09 is: 21,556,217.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,009,503.51 : 38,653,283.34 = 15,620,379.09 : x
  2. Step 2: Convert to fraction form
    28,009,503.51/38,653,283.34 = 15,620,379.09/x
  3. Step 3: Cross multiply
    28,009,503.51x = 38,653,283.34 × 15,620,379.09
  4. Step 4: Simplify right side
    28,009,503.51x = 603,778,938,843,981.38
  5. Step 5: Solve for x
    x = 603,778,938,843,981.38/28,009,503.51
  6. Step 6: Final answer
    x = 21,556,217.11

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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.