Home / 360,008,015.45-540,008,086.56-87,378,782.45

Finding the Fourth Proportional to 360,008,015.45, 540,008,086.56 and 87,378,782.45

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Solution

The fourth proportional to 360,008,015.45, 540,008,086.56 and 87,378,782.45 is: 131,067,218.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,008,015.45 : 540,008,086.56 = 87,378,782.45 : x
  2. Step 2: Convert to fraction form
    360,008,015.45/540,008,086.56 = 87,378,782.45/x
  3. Step 3: Cross multiply
    360,008,015.45x = 540,008,086.56 × 87,378,782.45
  4. Step 4: Simplify right side
    360,008,015.45x = 47,185,249,116,767,008
  5. Step 5: Solve for x
    x = 47,185,249,116,767,008/360,008,015.45
  6. Step 6: Final answer
    x = 131,067,218.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.