Home / 85,245,362.52-127,900,255.76-51,190,448.28

Finding the Fourth Proportional to 85,245,362.52, 127,900,255.76 and 51,190,448.28

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Solution

The fourth proportional to 85,245,362.52, 127,900,255.76 and 51,190,448.28 is: 76,805,015.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,245,362.52 : 127,900,255.76 = 51,190,448.28 : x
  2. Step 2: Convert to fraction form
    85,245,362.52/127,900,255.76 = 51,190,448.28/x
  3. Step 3: Cross multiply
    85,245,362.52x = 127,900,255.76 × 51,190,448.28
  4. Step 4: Simplify right side
    85,245,362.52x = 6,547,271,427,481,053
  5. Step 5: Solve for x
    x = 6,547,271,427,481,053/85,245,362.52
  6. Step 6: Final answer
    x = 76,805,015.94

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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.