Home / 103,612,454.47-143,049,716.45-65,956,865.06

Finding the Fourth Proportional to 103,612,454.47, 143,049,716.45 and 65,956,865.06

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Solution

The fourth proportional to 103,612,454.47, 143,049,716.45 and 65,956,865.06 is: 91,061,551.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,612,454.47 : 143,049,716.45 = 65,956,865.06 : x
  2. Step 2: Convert to fraction form
    103,612,454.47/143,049,716.45 = 65,956,865.06/x
  3. Step 3: Cross multiply
    103,612,454.47x = 143,049,716.45 × 65,956,865.06
  4. Step 4: Simplify right side
    103,612,454.47x = 9,435,110,845,039,090
  5. Step 5: Solve for x
    x = 9,435,110,845,039,090/103,612,454.47
  6. Step 6: Final answer
    x = 91,061,551.37

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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.