Home / 317,659,395.40-438,380,611.18-176,536,563.84

Finding the Fourth Proportional to 317,659,395.40, 438,380,611.18 and 176,536,563.84

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Solution

The fourth proportional to 317,659,395.40, 438,380,611.18 and 176,536,563.84 is: 243,626,374.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,659,395.40 : 438,380,611.18 = 176,536,563.84 : x
  2. Step 2: Convert to fraction form
    317,659,395.40/438,380,611.18 = 176,536,563.84/x
  3. Step 3: Cross multiply
    317,659,395.40x = 438,380,611.18 × 176,536,563.84
  4. Step 4: Simplify right side
    317,659,395.40x = 77,390,206,751,796,288
  5. Step 5: Solve for x
    x = 77,390,206,751,796,288/317,659,395.40
  6. Step 6: Final answer
    x = 243,626,374.26

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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.