Home / 19,320,176.70-28,980,265.05-11,761,904.70

Finding the Fourth Proportional to 19,320,176.70, 28,980,265.05 and 11,761,904.70

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Solution

The fourth proportional to 19,320,176.70, 28,980,265.05 and 11,761,904.70 is: 17,642,857.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320,176.70 : 28,980,265.05 = 11,761,904.70 : x
  2. Step 2: Convert to fraction form
    19,320,176.70/28,980,265.05 = 11,761,904.70/x
  3. Step 3: Cross multiply
    19,320,176.70x = 28,980,265.05 × 11,761,904.70
  4. Step 4: Simplify right side
    19,320,176.70x = 340,863,115,698,840.75
  5. Step 5: Solve for x
    x = 340,863,115,698,840.75/19,320,176.70
  6. Step 6: Final answer
    x = 17,642,857.05

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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.