Home / 70,885,790.88-106,346,619.78-19,767,815.16

Finding the Fourth Proportional to 70,885,790.88, 106,346,619.78 and 19,767,815.16

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Solution

The fourth proportional to 70,885,790.88, 106,346,619.78 and 19,767,815.16 is: 29,656,723.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,885,790.88 : 106,346,619.78 = 19,767,815.16 : x
  2. Step 2: Convert to fraction form
    70,885,790.88/106,346,619.78 = 19,767,815.16/x
  3. Step 3: Cross multiply
    70,885,790.88x = 106,346,619.78 × 19,767,815.16
  4. Step 4: Simplify right side
    70,885,790.88x = 2,102,240,322,701,840
  5. Step 5: Solve for x
    x = 2,102,240,322,701,840/70,885,790.88
  6. Step 6: Final answer
    x = 29,656,723.82

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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.