Home / 391,462,751.54-540,237,989.96-242,831,761.52

Finding the Fourth Proportional to 391,462,751.54, 540,237,989.96 and 242,831,761.52

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Solution

The fourth proportional to 391,462,751.54, 540,237,989.96 and 242,831,761.52 is: 335,119,860.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,462,751.54 : 540,237,989.96 = 242,831,761.52 : x
  2. Step 2: Convert to fraction form
    391,462,751.54/540,237,989.96 = 242,831,761.52/x
  3. Step 3: Cross multiply
    391,462,751.54x = 540,237,989.96 × 242,831,761.52
  4. Step 4: Simplify right side
    391,462,751.54x = 131,186,942,742,010,896
  5. Step 5: Solve for x
    x = 131,186,942,742,010,896/391,462,751.54
  6. Step 6: Final answer
    x = 335,119,860.64

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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.