Home / 505,323,720.15-757,985,580.23-308,903,126.55

Finding the Fourth Proportional to 505,323,720.15, 757,985,580.23 and 308,903,126.55

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Solution

The fourth proportional to 505,323,720.15, 757,985,580.23 and 308,903,126.55 is: 463,354,689.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,323,720.15 : 757,985,580.23 = 308,903,126.55 : x
  2. Step 2: Convert to fraction form
    505,323,720.15/757,985,580.23 = 308,903,126.55/x
  3. Step 3: Cross multiply
    505,323,720.15x = 757,985,580.23 × 308,903,126.55
  4. Step 4: Simplify right side
    505,323,720.15x = 234,144,115,611,318,368
  5. Step 5: Solve for x
    x = 234,144,115,611,318,368/505,323,720.15
  6. Step 6: Final answer
    x = 463,354,689.83

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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.