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Finding the Fourth Proportional to 209,952,779.20, 314,929,168.80 and 184,443,611.20

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Solution

The fourth proportional to 209,952,779.20, 314,929,168.80 and 184,443,611.20 is: 276,665,416.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,779.20 : 314,929,168.80 = 184,443,611.20 : x
  2. Step 2: Convert to fraction form
    209,952,779.20/314,929,168.80 = 184,443,611.20/x
  3. Step 3: Cross multiply
    209,952,779.20x = 314,929,168.80 × 184,443,611.20
  4. Step 4: Simplify right side
    209,952,779.20x = 58,086,673,165,686,368
  5. Step 5: Solve for x
    x = 58,086,673,165,686,368/209,952,779.20
  6. Step 6: Final answer
    x = 276,665,416.80

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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.