Home / 428,110,827.85-590,841,951.65-239,989,930.84

Finding the Fourth Proportional to 428,110,827.85, 590,841,951.65 and 239,989,930.84

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Solution

The fourth proportional to 428,110,827.85, 590,841,951.65 and 239,989,930.84 is: 331,213,578.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,110,827.85 : 590,841,951.65 = 239,989,930.84 : x
  2. Step 2: Convert to fraction form
    428,110,827.85/590,841,951.65 = 239,989,930.84/x
  3. Step 3: Cross multiply
    428,110,827.85x = 590,841,951.65 × 239,989,930.84
  4. Step 4: Simplify right side
    428,110,827.85x = 141,796,119,113,854,128
  5. Step 5: Solve for x
    x = 141,796,119,113,854,128/428,110,827.85
  6. Step 6: Final answer
    x = 331,213,578.10

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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.