Home / 579,978,130.77-800,386,816.37-315,677,242.53

Finding the Fourth Proportional to 579,978,130.77, 800,386,816.37 and 315,677,242.53

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Solution

The fourth proportional to 579,978,130.77, 800,386,816.37 and 315,677,242.53 is: 435,643,845.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,978,130.77 : 800,386,816.37 = 315,677,242.53 : x
  2. Step 2: Convert to fraction form
    579,978,130.77/800,386,816.37 = 315,677,242.53/x
  3. Step 3: Cross multiply
    579,978,130.77x = 800,386,816.37 × 315,677,242.53
  4. Step 4: Simplify right side
    579,978,130.77x = 252,663,903,147,468,672
  5. Step 5: Solve for x
    x = 252,663,903,147,468,672/579,978,130.77
  6. Step 6: Final answer
    x = 435,643,845.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.