Home / 18,139,010.40-27,208,515.60-12,753,741.60

Finding the Fourth Proportional to 18,139,010.40, 27,208,515.60 and 12,753,741.60

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Solution

The fourth proportional to 18,139,010.40, 27,208,515.60 and 12,753,741.60 is: 19,130,612.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139,010.40 : 27,208,515.60 = 12,753,741.60 : x
  2. Step 2: Convert to fraction form
    18,139,010.40/27,208,515.60 = 12,753,741.60/x
  3. Step 3: Cross multiply
    18,139,010.40x = 27,208,515.60 × 12,753,741.60
  4. Step 4: Simplify right side
    18,139,010.40x = 347,010,377,281,969
  5. Step 5: Solve for x
    x = 347,010,377,281,969/18,139,010.40
  6. Step 6: Final answer
    x = 19,130,612.40

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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.