Home / 13,280,632.74-18,328,636.94-7,984,042.39

Finding the Fourth Proportional to 13,280,632.74, 18,328,636.94 and 7,984,042.39

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Solution

The fourth proportional to 13,280,632.74, 18,328,636.94 and 7,984,042.39 is: 11,018,798.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280,632.74 : 18,328,636.94 = 7,984,042.39 : x
  2. Step 2: Convert to fraction form
    13,280,632.74/18,328,636.94 = 7,984,042.39/x
  3. Step 3: Cross multiply
    13,280,632.74x = 18,328,636.94 × 7,984,042.39
  4. Step 4: Simplify right side
    13,280,632.74x = 146,336,614,337,048.81
  5. Step 5: Solve for x
    x = 146,336,614,337,048.81/13,280,632.74
  6. Step 6: Final answer
    x = 11,018,798.36

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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.