Home / 278,499,617.52-384,019,539.48-190,407,905.52

Finding the Fourth Proportional to 278,499,617.52, 384,019,539.48 and 190,407,905.52

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Solution

The fourth proportional to 278,499,617.52, 384,019,539.48 and 190,407,905.52 is: 262,551,011.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,499,617.52 : 384,019,539.48 = 190,407,905.52 : x
  2. Step 2: Convert to fraction form
    278,499,617.52/384,019,539.48 = 190,407,905.52/x
  3. Step 3: Cross multiply
    278,499,617.52x = 384,019,539.48 × 190,407,905.52
  4. Step 4: Simplify right side
    278,499,617.52x = 73,120,356,191,141,760
  5. Step 5: Solve for x
    x = 73,120,356,191,141,760/278,499,617.52
  6. Step 6: Final answer
    x = 262,551,011.17

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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.