Home / 930,393,669.60-1,283,951,755.44-512,720,940.96

Finding the Fourth Proportional to 930,393,669.60, 1,283,951,755.44 and 512,720,940.96

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Solution

The fourth proportional to 930,393,669.60, 1,283,951,755.44 and 512,720,940.96 is: 707,559,577.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,393,669.60 : 1,283,951,755.44 = 512,720,940.96 : x
  2. Step 2: Convert to fraction form
    930,393,669.60/1,283,951,755.44 = 512,720,940.96/x
  3. Step 3: Cross multiply
    930,393,669.60x = 1,283,951,755.44 × 512,720,940.96
  4. Step 4: Simplify right side
    930,393,669.60x = 658,308,952,196,440,576
  5. Step 5: Solve for x
    x = 658,308,952,196,440,576/930,393,669.60
  6. Step 6: Final answer
    x = 707,559,577.96

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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.