Home / 18,837,856.12-28,215,587.06-13,356,335.40

Finding the Fourth Proportional to 18,837,856.12, 28,215,587.06 and 13,356,335.40

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Solution

The fourth proportional to 18,837,856.12, 28,215,587.06 and 13,356,335.40 is: 20,005,293.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,837,856.12 : 28,215,587.06 = 13,356,335.40 : x
  2. Step 2: Convert to fraction form
    18,837,856.12/28,215,587.06 = 13,356,335.40/x
  3. Step 3: Cross multiply
    18,837,856.12x = 28,215,587.06 × 13,356,335.40
  4. Step 4: Simplify right side
    18,837,856.12x = 376,856,844,281,259.94
  5. Step 5: Solve for x
    x = 376,856,844,281,259.94/18,837,856.12
  6. Step 6: Final answer
    x = 20,005,293.70

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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.