Home / 19,894,272.32-29,839,698.88-12,111,166.40

Finding the Fourth Proportional to 19,894,272.32, 29,839,698.88 and 12,111,166.40

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Solution

The fourth proportional to 19,894,272.32, 29,839,698.88 and 12,111,166.40 is: 18,165,708.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,894,272.32 : 29,839,698.88 = 12,111,166.40 : x
  2. Step 2: Convert to fraction form
    19,894,272.32/29,839,698.88 = 12,111,166.40/x
  3. Step 3: Cross multiply
    19,894,272.32x = 29,839,698.88 × 12,111,166.40
  4. Step 4: Simplify right side
    19,894,272.32x = 361,393,558,461,573.62
  5. Step 5: Solve for x
    x = 361,393,558,461,573.62/19,894,272.32
  6. Step 6: Final answer
    x = 18,165,708.84

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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.