Home / 428,110,830.86-590,841,955.78-239,989,933.84

Finding the Fourth Proportional to 428,110,830.86, 590,841,955.78 and 239,989,933.84

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Solution

The fourth proportional to 428,110,830.86, 590,841,955.78 and 239,989,933.84 is: 331,213,582.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,110,830.86 : 590,841,955.78 = 239,989,933.84 : x
  2. Step 2: Convert to fraction form
    428,110,830.86/590,841,955.78 = 239,989,933.84/x
  3. Step 3: Cross multiply
    428,110,830.86x = 590,841,955.78 × 239,989,933.84
  4. Step 4: Simplify right side
    428,110,830.86x = 141,796,121,877,538,400
  5. Step 5: Solve for x
    x = 141,796,121,877,538,400/428,110,830.86
  6. Step 6: Final answer
    x = 331,213,582.22

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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.