Home / 12,399,152.70-18,565,551.45-7,886,999.10

Finding the Fourth Proportional to 12,399,152.70, 18,565,551.45 and 7,886,999.10

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Solution

The fourth proportional to 12,399,152.70, 18,565,551.45 and 7,886,999.10 is: 11,809,394.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,399,152.70 : 18,565,551.45 = 7,886,999.10 : x
  2. Step 2: Convert to fraction form
    12,399,152.70/18,565,551.45 = 7,886,999.10/x
  3. Step 3: Cross multiply
    12,399,152.70x = 18,565,551.45 × 7,886,999.10
  4. Step 4: Simplify right side
    12,399,152.70x = 146,426,487,577,153.69
  5. Step 5: Solve for x
    x = 146,426,487,577,153.69/12,399,152.70
  6. Step 6: Final answer
    x = 11,809,394.65

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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.