Home / 6,128,761.12-9,186,755.36-3,429,128.32

Finding the Fourth Proportional to 6,128,761.12, 9,186,755.36 and 3,429,128.32

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Solution

The fourth proportional to 6,128,761.12, 9,186,755.36 and 3,429,128.32 is: 5,140,119.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128,761.12 : 9,186,755.36 = 3,429,128.32 : x
  2. Step 2: Convert to fraction form
    6,128,761.12/9,186,755.36 = 3,429,128.32/x
  3. Step 3: Cross multiply
    6,128,761.12x = 9,186,755.36 × 3,429,128.32
  4. Step 4: Simplify right side
    6,128,761.12x = 31,502,562,973,887.79
  5. Step 5: Solve for x
    x = 31,502,562,973,887.79/6,128,761.12
  6. Step 6: Final answer
    x = 5,140,119.24

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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.