Home / 9,072,890.10-13,609,335.15-8,631,990.90

Finding the Fourth Proportional to 9,072,890.10, 13,609,335.15 and 8,631,990.90

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Solution

The fourth proportional to 9,072,890.10, 13,609,335.15 and 8,631,990.90 is: 12,947,986.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,072,890.10 : 13,609,335.15 = 8,631,990.90 : x
  2. Step 2: Convert to fraction form
    9,072,890.10/13,609,335.15 = 8,631,990.90/x
  3. Step 3: Cross multiply
    9,072,890.10x = 13,609,335.15 × 8,631,990.90
  4. Step 4: Simplify right side
    9,072,890.10x = 117,475,657,169,850.14
  5. Step 5: Solve for x
    x = 117,475,657,169,850.14/9,072,890.10
  6. Step 6: Final answer
    x = 12,947,986.35

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Half scale
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Double scale
Find fourth proportional to 9,072,891.10, 13,609,336.65 and 8,631,991.90
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.