Home / 12,457,127.40-18,685,691.10-11,500,533.60

Finding the Fourth Proportional to 12,457,127.40, 18,685,691.10 and 11,500,533.60

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Solution

The fourth proportional to 12,457,127.40, 18,685,691.10 and 11,500,533.60 is: 17,250,800.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,127.40 : 18,685,691.10 = 11,500,533.60 : x
  2. Step 2: Convert to fraction form
    12,457,127.40/18,685,691.10 = 11,500,533.60/x
  3. Step 3: Cross multiply
    12,457,127.40x = 18,685,691.10 × 11,500,533.60
  4. Step 4: Simplify right side
    12,457,127.40x = 214,895,418,334,770.97
  5. Step 5: Solve for x
    x = 214,895,418,334,770.97/12,457,127.40
  6. Step 6: Final answer
    x = 17,250,800.40

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1.5x scale

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.