Home / 12,528,047.70-18,792,071.55-6,543,638.10

Finding the Fourth Proportional to 12,528,047.70, 18,792,071.55 and 6,543,638.10

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Solution

The fourth proportional to 12,528,047.70, 18,792,071.55 and 6,543,638.10 is: 9,815,457.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,047.70 : 18,792,071.55 = 6,543,638.10 : x
  2. Step 2: Convert to fraction form
    12,528,047.70/18,792,071.55 = 6,543,638.10/x
  3. Step 3: Cross multiply
    12,528,047.70x = 18,792,071.55 × 6,543,638.10
  4. Step 4: Simplify right side
    12,528,047.70x = 122,968,515,372,506.05
  5. Step 5: Solve for x
    x = 122,968,515,372,506.05/12,528,047.70
  6. Step 6: Final answer
    x = 9,815,457.15

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Double scale
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Similar ratio
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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.