Home / 317,659,405.72-438,380,625.72-176,536,574.41

Finding the Fourth Proportional to 317,659,405.72, 438,380,625.72 and 176,536,574.41

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Solution

The fourth proportional to 317,659,405.72, 438,380,625.72 and 176,536,574.41 is: 243,626,389.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,659,405.72 : 438,380,625.72 = 176,536,574.41 : x
  2. Step 2: Convert to fraction form
    317,659,405.72/438,380,625.72 = 176,536,574.41/x
  3. Step 3: Cross multiply
    317,659,405.72x = 438,380,625.72 × 176,536,574.41
  4. Step 4: Simplify right side
    317,659,405.72x = 77,390,213,952,321,136
  5. Step 5: Solve for x
    x = 77,390,213,952,321,136/317,659,405.72
  6. Step 6: Final answer
    x = 243,626,389.02

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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.