Home / 256,634,809.43-384,798,483.80-81,682,273.17

Finding the Fourth Proportional to 256,634,809.43, 384,798,483.80 and 81,682,273.17

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Solution

The fourth proportional to 256,634,809.43, 384,798,483.80 and 81,682,273.17 is: 122,474,480.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,634,809.43 : 384,798,483.80 = 81,682,273.17 : x
  2. Step 2: Convert to fraction form
    256,634,809.43/384,798,483.80 = 81,682,273.17/x
  3. Step 3: Cross multiply
    256,634,809.43x = 384,798,483.80 × 81,682,273.17
  4. Step 4: Simplify right side
    256,634,809.43x = 31,431,214,868,745,012
  5. Step 5: Solve for x
    x = 31,431,214,868,745,012/256,634,809.43
  6. Step 6: Final answer
    x = 122,474,480.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.