Home / 10,656,455.80-15,984,683.70-6,401,428.60

Finding the Fourth Proportional to 10,656,455.80, 15,984,683.70 and 6,401,428.60

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Solution

The fourth proportional to 10,656,455.80, 15,984,683.70 and 6,401,428.60 is: 9,602,142.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,656,455.80 : 15,984,683.70 = 6,401,428.60 : x
  2. Step 2: Convert to fraction form
    10,656,455.80/15,984,683.70 = 6,401,428.60/x
  3. Step 3: Cross multiply
    10,656,455.80x = 15,984,683.70 × 6,401,428.60
  4. Step 4: Simplify right side
    10,656,455.80x = 102,324,811,399,133.81
  5. Step 5: Solve for x
    x = 102,324,811,399,133.81/10,656,455.80
  6. Step 6: Final answer
    x = 9,602,142.90

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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.