Home / 319,548,066.12-440,972,036.42-178,421,481

Finding the Fourth Proportional to 319,548,066.12, 440,972,036.42 and 178,421,481

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Solution

The fourth proportional to 319,548,066.12, 440,972,036.42 and 178,421,481 is: 246,219,245.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,548,066.12 : 440,972,036.42 = 178,421,481 : x
  2. Step 2: Convert to fraction form
    319,548,066.12/440,972,036.42 = 178,421,481/x
  3. Step 3: Cross multiply
    319,548,066.12x = 440,972,036.42 × 178,421,481
  4. Step 4: Simplify right side
    319,548,066.12x = 78,678,883,816,750,240
  5. Step 5: Solve for x
    x = 78,678,883,816,750,240/319,548,066.12
  6. Step 6: Final answer
    x = 246,219,245.74

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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.