Home / 128,535,634.08-177,313,586.16-82,077,040.80

Finding the Fourth Proportional to 128,535,634.08, 177,313,586.16 and 82,077,040.80

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Solution

The fourth proportional to 128,535,634.08, 177,313,586.16 and 82,077,040.80 is: 113,224,434.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,535,634.08 : 177,313,586.16 = 82,077,040.80 : x
  2. Step 2: Convert to fraction form
    128,535,634.08/177,313,586.16 = 82,077,040.80/x
  3. Step 3: Cross multiply
    128,535,634.08x = 177,313,586.16 × 82,077,040.80
  4. Step 4: Simplify right side
    128,535,634.08x = 14,553,374,445,648,634
  5. Step 5: Solve for x
    x = 14,553,374,445,648,634/128,535,634.08
  6. Step 6: Final answer
    x = 113,224,434.22

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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.