Home / 317,022,356.21-437,494,020.23-177,790,127.81

Finding the Fourth Proportional to 317,022,356.21, 437,494,020.23 and 177,790,127.81

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Solution

The fourth proportional to 317,022,356.21, 437,494,020.23 and 177,790,127.81 is: 245,352,153.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,022,356.21 : 437,494,020.23 = 177,790,127.81 : x
  2. Step 2: Convert to fraction form
    317,022,356.21/437,494,020.23 = 177,790,127.81/x
  3. Step 3: Cross multiply
    317,022,356.21x = 437,494,020.23 × 177,790,127.81
  4. Step 4: Simplify right side
    317,022,356.21x = 77,782,117,772,802,432
  5. Step 5: Solve for x
    x = 77,782,117,772,802,432/317,022,356.21
  6. Step 6: Final answer
    x = 245,352,153.40

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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.