Home / 20,533,784.23-28,334,655.16-12,272,201.74

Finding the Fourth Proportional to 20,533,784.23, 28,334,655.16 and 12,272,201.74

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Solution

The fourth proportional to 20,533,784.23, 28,334,655.16 and 12,272,201.74 is: 16,934,462.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,533,784.23 : 28,334,655.16 = 12,272,201.74 : x
  2. Step 2: Convert to fraction form
    20,533,784.23/28,334,655.16 = 12,272,201.74/x
  3. Step 3: Cross multiply
    20,533,784.23x = 28,334,655.16 × 12,272,201.74
  4. Step 4: Simplify right side
    20,533,784.23x = 347,728,604,356,852
  5. Step 5: Solve for x
    x = 347,728,604,356,852/20,533,784.23
  6. Step 6: Final answer
    x = 16,934,462.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.