Home / 18,880,356-28,317,731.23-5,232,079.39

Finding the Fourth Proportional to 18,880,356, 28,317,731.23 and 5,232,079.39

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Solution

The fourth proportional to 18,880,356, 28,317,731.23 and 5,232,079.39 is: 7,847,342.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,880,356 : 28,317,731.23 = 5,232,079.39 : x
  2. Step 2: Convert to fraction form
    18,880,356/28,317,731.23 = 5,232,079.39/x
  3. Step 3: Cross multiply
    18,880,356x = 28,317,731.23 × 5,232,079.39
  4. Step 4: Simplify right side
    18,880,356x = 148,160,617,940,042.34
  5. Step 5: Solve for x
    x = 148,160,617,940,042.34/18,880,356
  6. Step 6: Final answer
    x = 7,847,342.39

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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.