Home / 19,153,971.40-28,693,632.30-11,558,374.60

Finding the Fourth Proportional to 19,153,971.40, 28,693,632.30 and 11,558,374.60

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Solution

The fourth proportional to 19,153,971.40, 28,693,632.30 and 11,558,374.60 is: 17,315,038.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,153,971.40 : 28,693,632.30 = 11,558,374.60 : x
  2. Step 2: Convert to fraction form
    19,153,971.40/28,693,632.30 = 11,558,374.60/x
  3. Step 3: Cross multiply
    19,153,971.40x = 28,693,632.30 × 11,558,374.60
  4. Step 4: Simplify right side
    19,153,971.40x = 331,651,750,758,059.56
  5. Step 5: Solve for x
    x = 331,651,750,758,059.56/19,153,971.40
  6. Step 6: Final answer
    x = 17,315,038.42

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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.