Home / 77,320,840.28-106,699,889.94-42,511,459.64

Finding the Fourth Proportional to 77,320,840.28, 106,699,889.94 and 42,511,459.64

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Solution

The fourth proportional to 77,320,840.28, 106,699,889.94 and 42,511,459.64 is: 58,664,236.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,320,840.28 : 106,699,889.94 = 42,511,459.64 : x
  2. Step 2: Convert to fraction form
    77,320,840.28/106,699,889.94 = 42,511,459.64/x
  3. Step 3: Cross multiply
    77,320,840.28x = 106,699,889.94 × 42,511,459.64
  4. Step 4: Simplify right side
    77,320,840.28x = 4,535,968,064,776,752
  5. Step 5: Solve for x
    x = 4,535,968,064,776,752/77,320,840.28
  6. Step 6: Final answer
    x = 58,664,236.55

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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.