Home / 76,831,442.06-106,028,212.48-42,023,388.20

Finding the Fourth Proportional to 76,831,442.06, 106,028,212.48 and 42,023,388.20

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Solution

The fourth proportional to 76,831,442.06, 106,028,212.48 and 42,023,388.20 is: 57,992,725.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,831,442.06 : 106,028,212.48 = 42,023,388.20 : x
  2. Step 2: Convert to fraction form
    76,831,442.06/106,028,212.48 = 42,023,388.20/x
  3. Step 3: Cross multiply
    76,831,442.06x = 106,028,212.48 × 42,023,388.20
  4. Step 4: Simplify right side
    76,831,442.06x = 4,455,664,732,563,925.50
  5. Step 5: Solve for x
    x = 4,455,664,732,563,925.50/76,831,442.06
  6. Step 6: Final answer
    x = 57,992,725.55

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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.