Home / 13,354,004.80-20,031,007.20-12,831,457.60

Finding the Fourth Proportional to 13,354,004.80, 20,031,007.20 and 12,831,457.60

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Solution

The fourth proportional to 13,354,004.80, 20,031,007.20 and 12,831,457.60 is: 19,247,186.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,354,004.80 : 20,031,007.20 = 12,831,457.60 : x
  2. Step 2: Convert to fraction form
    13,354,004.80/20,031,007.20 = 12,831,457.60/x
  3. Step 3: Cross multiply
    13,354,004.80x = 20,031,007.20 × 12,831,457.60
  4. Step 4: Simplify right side
    13,354,004.80x = 257,027,019,572,094.69
  5. Step 5: Solve for x
    x = 257,027,019,572,094.69/13,354,004.80
  6. Step 6: Final answer
    x = 19,247,186.40

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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.