Home / 117,028,041.77-161,437,469.02-72,359,735.09

Finding the Fourth Proportional to 117,028,041.77, 161,437,469.02 and 72,359,735.09

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Solution

The fourth proportional to 117,028,041.77, 161,437,469.02 and 72,359,735.09 is: 99,818,576.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,028,041.77 : 161,437,469.02 = 72,359,735.09 : x
  2. Step 2: Convert to fraction form
    117,028,041.77/161,437,469.02 = 72,359,735.09/x
  3. Step 3: Cross multiply
    117,028,041.77x = 161,437,469.02 × 72,359,735.09
  4. Step 4: Simplify right side
    117,028,041.77x = 11,681,572,492,109,978
  5. Step 5: Solve for x
    x = 11,681,572,492,109,978/117,028,041.77
  6. Step 6: Final answer
    x = 99,818,576.09

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.