Home / 545,935,999.20-818,903,998.80-339,311,738.40

Finding the Fourth Proportional to 545,935,999.20, 818,903,998.80 and 339,311,738.40

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Solution

The fourth proportional to 545,935,999.20, 818,903,998.80 and 339,311,738.40 is: 508,967,607.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,935,999.20 : 818,903,998.80 = 339,311,738.40 : x
  2. Step 2: Convert to fraction form
    545,935,999.20/818,903,998.80 = 339,311,738.40/x
  3. Step 3: Cross multiply
    545,935,999.20x = 818,903,998.80 × 339,311,738.40
  4. Step 4: Simplify right side
    545,935,999.20x = 277,863,739,415,539,488
  5. Step 5: Solve for x
    x = 277,863,739,415,539,488/545,935,999.20
  6. Step 6: Final answer
    x = 508,967,607.60

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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.