Home / 20,860,602.76-28,789,407-11,695,017.04

Finding the Fourth Proportional to 20,860,602.76, 28,789,407 and 11,695,017.04

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Solution

The fourth proportional to 20,860,602.76, 28,789,407 and 11,695,017.04 is: 16,140,118.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860,602.76 : 28,789,407 = 11,695,017.04 : x
  2. Step 2: Convert to fraction form
    20,860,602.76/28,789,407 = 11,695,017.04/x
  3. Step 3: Cross multiply
    20,860,602.76x = 28,789,407 × 11,695,017.04
  4. Step 4: Simplify right side
    20,860,602.76x = 336,692,605,436,495.25
  5. Step 5: Solve for x
    x = 336,692,605,436,495.25/20,860,602.76
  6. Step 6: Final answer
    x = 16,140,118.74

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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.