Home / 100,537,318.56-138,743,334-55,887,483.36

Finding the Fourth Proportional to 100,537,318.56, 138,743,334 and 55,887,483.36

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Solution

The fourth proportional to 100,537,318.56, 138,743,334 and 55,887,483.36 is: 77,125,746.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,537,318.56 : 138,743,334 = 55,887,483.36 : x
  2. Step 2: Convert to fraction form
    100,537,318.56/138,743,334 = 55,887,483.36/x
  3. Step 3: Cross multiply
    100,537,318.56x = 138,743,334 × 55,887,483.36
  4. Step 4: Simplify right side
    100,537,318.56x = 7,754,015,770,235,922
  5. Step 5: Solve for x
    x = 7,754,015,770,235,922/100,537,318.56
  6. Step 6: Final answer
    x = 77,125,746.75

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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.