Home / 13,579,345.92-18,739,123.52-7,467,774.40

Finding the Fourth Proportional to 13,579,345.92, 18,739,123.52 and 7,467,774.40

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Solution

The fourth proportional to 13,579,345.92, 18,739,123.52 and 7,467,774.40 is: 10,305,323.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579,345.92 : 18,739,123.52 = 7,467,774.40 : x
  2. Step 2: Convert to fraction form
    13,579,345.92/18,739,123.52 = 7,467,774.40/x
  3. Step 3: Cross multiply
    13,579,345.92x = 18,739,123.52 × 7,467,774.40
  4. Step 4: Simplify right side
    13,579,345.92x = 139,939,546,901,093.89
  5. Step 5: Solve for x
    x = 139,939,546,901,093.89/13,579,345.92
  6. Step 6: Final answer
    x = 10,305,323.08

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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.