Home / 18,138,686.40-27,208,029.60-12,753,417.60

Finding the Fourth Proportional to 18,138,686.40, 27,208,029.60 and 12,753,417.60

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Solution

The fourth proportional to 18,138,686.40, 27,208,029.60 and 12,753,417.60 is: 19,130,126.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138,686.40 : 27,208,029.60 = 12,753,417.60 : x
  2. Step 2: Convert to fraction form
    18,138,686.40/27,208,029.60 = 12,753,417.60/x
  3. Step 3: Cross multiply
    18,138,686.40x = 27,208,029.60 × 12,753,417.60
  4. Step 4: Simplify right side
    18,138,686.40x = 346,995,363,561,961
  5. Step 5: Solve for x
    x = 346,995,363,561,961/18,138,686.40
  6. Step 6: Final answer
    x = 19,130,126.40

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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.