Home / 85,802,921.28-118,296,891.72-55,573,636.32

Finding the Fourth Proportional to 85,802,921.28, 118,296,891.72 and 55,573,636.32

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Solution

The fourth proportional to 85,802,921.28, 118,296,891.72 and 55,573,636.32 is: 76,619,634.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,802,921.28 : 118,296,891.72 = 55,573,636.32 : x
  2. Step 2: Convert to fraction form
    85,802,921.28/118,296,891.72 = 55,573,636.32/x
  3. Step 3: Cross multiply
    85,802,921.28x = 118,296,891.72 × 55,573,636.32
  4. Step 4: Simplify right side
    85,802,921.28x = 6,574,188,438,233,699
  5. Step 5: Solve for x
    x = 6,574,188,438,233,699/85,802,921.28
  6. Step 6: Final answer
    x = 76,619,634.16

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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.