Home / 20,860,168.40-31,290,252.60-10,656,501.20

Finding the Fourth Proportional to 20,860,168.40, 31,290,252.60 and 10,656,501.20

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Solution

The fourth proportional to 20,860,168.40, 31,290,252.60 and 10,656,501.20 is: 15,984,751.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860,168.40 : 31,290,252.60 = 10,656,501.20 : x
  2. Step 2: Convert to fraction form
    20,860,168.40/31,290,252.60 = 10,656,501.20/x
  3. Step 3: Cross multiply
    20,860,168.40x = 31,290,252.60 × 10,656,501.20
  4. Step 4: Simplify right side
    20,860,168.40x = 333,444,614,380,203.12
  5. Step 5: Solve for x
    x = 333,444,614,380,203.12/20,860,168.40
  6. Step 6: Final answer
    x = 15,984,751.80

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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.