Home / 211,411,324.80-317,022,508.80-81,975,916.80

Finding the Fourth Proportional to 211,411,324.80, 317,022,508.80 and 81,975,916.80

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Solution

The fourth proportional to 211,411,324.80, 317,022,508.80 and 81,975,916.80 is: 122,927,240.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,411,324.80 : 317,022,508.80 = 81,975,916.80 : x
  2. Step 2: Convert to fraction form
    211,411,324.80/317,022,508.80 = 81,975,916.80/x
  3. Step 3: Cross multiply
    211,411,324.80x = 317,022,508.80 × 81,975,916.80
  4. Step 4: Simplify right side
    211,411,324.80x = 25,988,210,805,116,068
  5. Step 5: Solve for x
    x = 25,988,210,805,116,068/211,411,324.80
  6. Step 6: Final answer
    x = 122,927,240.68

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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.