Home / 19,311,368.80-28,989,171.60-11,337,685.60

Finding the Fourth Proportional to 19,311,368.80, 28,989,171.60 and 11,337,685.60

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Solution

The fourth proportional to 19,311,368.80, 28,989,171.60 and 11,337,685.60 is: 17,019,514.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,311,368.80 : 28,989,171.60 = 11,337,685.60 : x
  2. Step 2: Convert to fraction form
    19,311,368.80/28,989,171.60 = 11,337,685.60/x
  3. Step 3: Cross multiply
    19,311,368.80x = 28,989,171.60 × 11,337,685.60
  4. Step 4: Simplify right side
    19,311,368.80x = 328,670,113,405,248.94
  5. Step 5: Solve for x
    x = 328,670,113,405,248.94/19,311,368.80
  6. Step 6: Final answer
    x = 17,019,514.09

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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.