Home / 7,178,058.56-9,906,316.32-4,122,862.40

Finding the Fourth Proportional to 7,178,058.56, 9,906,316.32 and 4,122,862.40

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Solution

The fourth proportional to 7,178,058.56, 9,906,316.32 and 4,122,862.40 is: 5,689,892.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178,058.56 : 9,906,316.32 = 4,122,862.40 : x
  2. Step 2: Convert to fraction form
    7,178,058.56/9,906,316.32 = 4,122,862.40/x
  3. Step 3: Cross multiply
    7,178,058.56x = 9,906,316.32 × 4,122,862.40
  4. Step 4: Simplify right side
    7,178,058.56x = 40,842,379,078,234.37
  5. Step 5: Solve for x
    x = 40,842,379,078,234.37/7,178,058.56
  6. Step 6: Final answer
    x = 5,689,892.15

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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.