Home / 13,158,485-18,153,148.88-8,808,972.56

Finding the Fourth Proportional to 13,158,485, 18,153,148.88 and 8,808,972.56

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Solution

The fourth proportional to 13,158,485, 18,153,148.88 and 8,808,972.56 is: 12,152,659.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,158,485 : 18,153,148.88 = 8,808,972.56 : x
  2. Step 2: Convert to fraction form
    13,158,485/18,153,148.88 = 8,808,972.56/x
  3. Step 3: Cross multiply
    13,158,485x = 18,153,148.88 × 8,808,972.56
  4. Step 4: Simplify right side
    13,158,485x = 159,910,590,361,514.72
  5. Step 5: Solve for x
    x = 159,910,590,361,514.72/13,158,485
  6. Step 6: Final answer
    x = 12,152,659.70

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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.