Home / 690,562,642.40-1,035,843,963.60-179,959,378.40

Finding the Fourth Proportional to 690,562,642.40, 1,035,843,963.60 and 179,959,378.40

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Solution

The fourth proportional to 690,562,642.40, 1,035,843,963.60 and 179,959,378.40 is: 269,939,067.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,562,642.40 : 1,035,843,963.60 = 179,959,378.40 : x
  2. Step 2: Convert to fraction form
    690,562,642.40/1,035,843,963.60 = 179,959,378.40/x
  3. Step 3: Cross multiply
    690,562,642.40x = 1,035,843,963.60 × 179,959,378.40
  4. Step 4: Simplify right side
    690,562,642.40x = 186,409,835,808,848,224
  5. Step 5: Solve for x
    x = 186,409,835,808,848,224/690,562,642.40
  6. Step 6: Final answer
    x = 269,939,067.60

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1.5x scale

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.