Home / 210,151,156.36-290,009,158.15-117,334,985.44

Finding the Fourth Proportional to 210,151,156.36, 290,009,158.15 and 117,334,985.44

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Solution

The fourth proportional to 210,151,156.36, 290,009,158.15 and 117,334,985.44 is: 161,922,593.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,151,156.36 : 290,009,158.15 = 117,334,985.44 : x
  2. Step 2: Convert to fraction form
    210,151,156.36/290,009,158.15 = 117,334,985.44/x
  3. Step 3: Cross multiply
    210,151,156.36x = 290,009,158.15 × 117,334,985.44
  4. Step 4: Simplify right side
    210,151,156.36x = 34,028,220,347,546,860
  5. Step 5: Solve for x
    x = 34,028,220,347,546,860/210,151,156.36
  6. Step 6: Final answer
    x = 161,922,593.90

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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.