Home / 641,431,965.96-885,176,134.02-348,076,533.96

Finding the Fourth Proportional to 641,431,965.96, 885,176,134.02 and 348,076,533.96

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Solution

The fourth proportional to 641,431,965.96, 885,176,134.02 and 348,076,533.96 is: 480,345,628.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,431,965.96 : 885,176,134.02 = 348,076,533.96 : x
  2. Step 2: Convert to fraction form
    641,431,965.96/885,176,134.02 = 348,076,533.96/x
  3. Step 3: Cross multiply
    641,431,965.96x = 885,176,134.02 × 348,076,533.96
  4. Step 4: Simplify right side
    641,431,965.96x = 308,109,040,673,793,984
  5. Step 5: Solve for x
    x = 308,109,040,673,793,984/641,431,965.96
  6. Step 6: Final answer
    x = 480,345,628.26

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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.