Home / 28,785,983.08-43,190,909.34-12,603,581.80

Finding the Fourth Proportional to 28,785,983.08, 43,190,909.34 and 12,603,581.80

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Solution

The fourth proportional to 28,785,983.08, 43,190,909.34 and 12,603,581.80 is: 18,910,598.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,785,983.08 : 43,190,909.34 = 12,603,581.80 : x
  2. Step 2: Convert to fraction form
    28,785,983.08/43,190,909.34 = 12,603,581.80/x
  3. Step 3: Cross multiply
    28,785,983.08x = 43,190,909.34 × 12,603,581.80
  4. Step 4: Simplify right side
    28,785,983.08x = 544,360,158,883,074.06
  5. Step 5: Solve for x
    x = 544,360,158,883,074.06/28,785,983.08
  6. Step 6: Final answer
    x = 18,910,598.17

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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.