Home / 13,771,118.40-20,657,455.20-4,186,809.60

Finding the Fourth Proportional to 13,771,118.40, 20,657,455.20 and 4,186,809.60

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Solution

The fourth proportional to 13,771,118.40, 20,657,455.20 and 4,186,809.60 is: 6,280,450.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,771,118.40 : 20,657,455.20 = 4,186,809.60 : x
  2. Step 2: Convert to fraction form
    13,771,118.40/20,657,455.20 = 4,186,809.60/x
  3. Step 3: Cross multiply
    13,771,118.40x = 20,657,455.20 × 4,186,809.60
  4. Step 4: Simplify right side
    13,771,118.40x = 86,488,831,742,929.92
  5. Step 5: Solve for x
    x = 86,488,831,742,929.92/13,771,118.40
  6. Step 6: Final answer
    x = 6,280,450.81

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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.