Home / 43,478,644.80-65,217,967.20-13,188,014.40

Finding the Fourth Proportional to 43,478,644.80, 65,217,967.20 and 13,188,014.40

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Solution

The fourth proportional to 43,478,644.80, 65,217,967.20 and 13,188,014.40 is: 19,782,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,478,644.80 : 65,217,967.20 = 13,188,014.40 : x
  2. Step 2: Convert to fraction form
    43,478,644.80/65,217,967.20 = 13,188,014.40/x
  3. Step 3: Cross multiply
    43,478,644.80x = 65,217,967.20 × 13,188,014.40
  4. Step 4: Simplify right side
    43,478,644.80x = 860,095,490,572,327.75
  5. Step 5: Solve for x
    x = 860,095,490,572,327.75/43,478,644.80
  6. Step 6: Final answer
    x = 19,782,021.60

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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.