Home / 7,299,211.20-10,948,816.80-1,980,427.20

Finding the Fourth Proportional to 7,299,211.20, 10,948,816.80 and 1,980,427.20

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Solution

The fourth proportional to 7,299,211.20, 10,948,816.80 and 1,980,427.20 is: 2,970,640.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,299,211.20 : 10,948,816.80 = 1,980,427.20 : x
  2. Step 2: Convert to fraction form
    7,299,211.20/10,948,816.80 = 1,980,427.20/x
  3. Step 3: Cross multiply
    7,299,211.20x = 10,948,816.80 × 1,980,427.20
  4. Step 4: Simplify right side
    7,299,211.20x = 21,683,334,598,536.96
  5. Step 5: Solve for x
    x = 21,683,334,598,536.96/7,299,211.20
  6. Step 6: Final answer
    x = 2,970,640.80

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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.