Home / 20,533,783.23-28,334,653.79-12,272,200.74

Finding the Fourth Proportional to 20,533,783.23, 28,334,653.79 and 12,272,200.74

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Solution

The fourth proportional to 20,533,783.23, 28,334,653.79 and 12,272,200.74 is: 16,934,461.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,533,783.23 : 28,334,653.79 = 12,272,200.74 : x
  2. Step 2: Convert to fraction form
    20,533,783.23/28,334,653.79 = 12,272,200.74/x
  3. Step 3: Cross multiply
    20,533,783.23x = 28,334,653.79 × 12,272,200.74
  4. Step 4: Simplify right side
    20,533,783.23x = 347,728,559,147,920.81
  5. Step 5: Solve for x
    x = 347,728,559,147,920.81/20,533,783.23
  6. Step 6: Final answer
    x = 16,934,461.38

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1.5x scale

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.