Home / 505,323,603.40-757,985,405.10-308,903,009.80

Finding the Fourth Proportional to 505,323,603.40, 757,985,405.10 and 308,903,009.80

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Solution

The fourth proportional to 505,323,603.40, 757,985,405.10 and 308,903,009.80 is: 463,354,514.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,323,603.40 : 757,985,405.10 = 308,903,009.80 : x
  2. Step 2: Convert to fraction form
    505,323,603.40/757,985,405.10 = 308,903,009.80/x
  3. Step 3: Cross multiply
    505,323,603.40x = 757,985,405.10 × 308,903,009.80
  4. Step 4: Simplify right side
    505,323,603.40x = 234,143,973,019,862,272
  5. Step 5: Solve for x
    x = 234,143,973,019,862,272/505,323,603.40
  6. Step 6: Final answer
    x = 463,354,514.70

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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.