Home / 28,990,134.20-43,485,201.30-19,434,985.40

Finding the Fourth Proportional to 28,990,134.20, 43,485,201.30 and 19,434,985.40

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Solution

The fourth proportional to 28,990,134.20, 43,485,201.30 and 19,434,985.40 is: 29,152,478.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,990,134.20 : 43,485,201.30 = 19,434,985.40 : x
  2. Step 2: Convert to fraction form
    28,990,134.20/43,485,201.30 = 19,434,985.40/x
  3. Step 3: Cross multiply
    28,990,134.20x = 43,485,201.30 × 19,434,985.40
  4. Step 4: Simplify right side
    28,990,134.20x = 845,134,252,381,560.88
  5. Step 5: Solve for x
    x = 845,134,252,381,560.88/28,990,134.20
  6. Step 6: Final answer
    x = 29,152,478.10

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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.