Home / 78,447,571,916.64-117,670,582,422.36-35,940,411,917.16

Finding the Fourth Proportional to 78,447,571,916.64, 117,670,582,422.36 and 35,940,411,917.16

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Solution

The fourth proportional to 78,447,571,916.64, 117,670,582,422.36 and 35,940,411,917.16 is: 53,910,262,605.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,447,571,916.64 : 117,670,582,422.36 = 35,940,411,917.16 : x
  2. Step 2: Convert to fraction form
    78,447,571,916.64/117,670,582,422.36 = 35,940,411,917.16/x
  3. Step 3: Cross multiply
    78,447,571,916.64x = 117,670,582,422.36 × 35,940,411,917.16
  4. Step 4: Simplify right side
    78,447,571,916.64x = 4,229,129,202,791,745,585,152
  5. Step 5: Solve for x
    x = 4,229,129,202,791,745,585,152/78,447,571,916.64
  6. Step 6: Final answer
    x = 53,910,262,605.52

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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.