Home / 100,692,963,486.40-138,959,578,459.55-54,969,676,942.55

Finding the Fourth Proportional to 100,692,963,486.40, 138,959,578,459.55 and 54,969,676,942.55

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Solution

The fourth proportional to 100,692,963,486.40, 138,959,578,459.55 and 54,969,676,942.55 is: 75,859,949,608.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,692,963,486.40 : 138,959,578,459.55 = 54,969,676,942.55 : x
  2. Step 2: Convert to fraction form
    100,692,963,486.40/138,959,578,459.55 = 54,969,676,942.55/x
  3. Step 3: Cross multiply
    100,692,963,486.40x = 138,959,578,459.55 × 54,969,676,942.55
  4. Step 4: Simplify right side
    100,692,963,486.40x = 7,638,563,135,993,697,796,096
  5. Step 5: Solve for x
    x = 7,638,563,135,993,697,796,096/100,692,963,486.40
  6. Step 6: Final answer
    x = 75,859,949,608.35

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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.