Home / 291,321,315.40-437,149,934.70-109,698,838.60

Finding the Fourth Proportional to 291,321,315.40, 437,149,934.70 and 109,698,838.60

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Solution

The fourth proportional to 291,321,315.40, 437,149,934.70 and 109,698,838.60 is: 164,611,504.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,321,315.40 : 437,149,934.70 = 109,698,838.60 : x
  2. Step 2: Convert to fraction form
    291,321,315.40/437,149,934.70 = 109,698,838.60/x
  3. Step 3: Cross multiply
    291,321,315.40x = 437,149,934.70 × 109,698,838.60
  4. Step 4: Simplify right side
    291,321,315.40x = 47,954,840,130,655,832
  5. Step 5: Solve for x
    x = 47,954,840,130,655,832/291,321,315.40
  6. Step 6: Final answer
    x = 164,611,504.88

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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.