Home / 13,771,121.40-20,657,459.70-4,186,812.60

Finding the Fourth Proportional to 13,771,121.40, 20,657,459.70 and 4,186,812.60

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Solution

The fourth proportional to 13,771,121.40, 20,657,459.70 and 4,186,812.60 is: 6,280,455.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,771,121.40 : 20,657,459.70 = 4,186,812.60 : x
  2. Step 2: Convert to fraction form
    13,771,121.40/20,657,459.70 = 4,186,812.60/x
  3. Step 3: Cross multiply
    13,771,121.40x = 20,657,459.70 × 4,186,812.60
  4. Step 4: Simplify right side
    13,771,121.40x = 86,488,912,555,952.22
  5. Step 5: Solve for x
    x = 86,488,912,555,952.22/13,771,121.40
  6. Step 6: Final answer
    x = 6,280,455.31

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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.