Home / 21,280,779.78-31,925,653.68-6,902,726.60

Finding the Fourth Proportional to 21,280,779.78, 31,925,653.68 and 6,902,726.60

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Solution

The fourth proportional to 21,280,779.78, 31,925,653.68 and 6,902,726.60 is: 10,355,544.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,280,779.78 : 31,925,653.68 = 6,902,726.60 : x
  2. Step 2: Convert to fraction form
    21,280,779.78/31,925,653.68 = 6,902,726.60/x
  3. Step 3: Cross multiply
    21,280,779.78x = 31,925,653.68 × 6,902,726.60
  4. Step 4: Simplify right side
    21,280,779.78x = 220,374,058,879,323.88
  5. Step 5: Solve for x
    x = 220,374,058,879,323.88/21,280,779.78
  6. Step 6: Final answer
    x = 10,355,544.35

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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.