Home / 30,785,495.52-42,483,710.16-18,394,916.16

Finding the Fourth Proportional to 30,785,495.52, 42,483,710.16 and 18,394,916.16

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Solution

The fourth proportional to 30,785,495.52, 42,483,710.16 and 18,394,916.16 is: 25,384,820.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,785,495.52 : 42,483,710.16 = 18,394,916.16 : x
  2. Step 2: Convert to fraction form
    30,785,495.52/42,483,710.16 = 18,394,916.16/x
  3. Step 3: Cross multiply
    30,785,495.52x = 42,483,710.16 × 18,394,916.16
  4. Step 4: Simplify right side
    30,785,495.52x = 781,484,286,558,940.12
  5. Step 5: Solve for x
    x = 781,484,286,558,940.12/30,785,495.52
  6. Step 6: Final answer
    x = 25,384,820.79

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1.5x scale

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.