Home / 12,921,959.54-19,371,207.57-6,447,015.26

Finding the Fourth Proportional to 12,921,959.54, 19,371,207.57 and 6,447,015.26

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Solution

The fourth proportional to 12,921,959.54, 19,371,207.57 and 6,447,015.26 is: 9,664,669.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921,959.54 : 19,371,207.57 = 6,447,015.26 : x
  2. Step 2: Convert to fraction form
    12,921,959.54/19,371,207.57 = 6,447,015.26/x
  3. Step 3: Cross multiply
    12,921,959.54x = 19,371,207.57 × 6,447,015.26
  4. Step 4: Simplify right side
    12,921,959.54x = 124,886,470,808,417.52
  5. Step 5: Solve for x
    x = 124,886,470,808,417.52/12,921,959.54
  6. Step 6: Final answer
    x = 9,664,669.70

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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.