Home / 12,156,890.40-18,235,335.60-9,322,538.40

Finding the Fourth Proportional to 12,156,890.40, 18,235,335.60 and 9,322,538.40

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Solution

The fourth proportional to 12,156,890.40, 18,235,335.60 and 9,322,538.40 is: 13,983,807.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156,890.40 : 18,235,335.60 = 9,322,538.40 : x
  2. Step 2: Convert to fraction form
    12,156,890.40/18,235,335.60 = 9,322,538.40/x
  3. Step 3: Cross multiply
    12,156,890.40x = 18,235,335.60 × 9,322,538.40
  4. Step 4: Simplify right side
    12,156,890.40x = 169,999,616,367,887.06
  5. Step 5: Solve for x
    x = 169,999,616,367,887.06/12,156,890.40
  6. Step 6: Final answer
    x = 13,983,807.60

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Similar ratio
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1.5x scale

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.