Home / 19,188,077.60-28,782,116.40-7,822,330.40

Finding the Fourth Proportional to 19,188,077.60, 28,782,116.40 and 7,822,330.40

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Solution

The fourth proportional to 19,188,077.60, 28,782,116.40 and 7,822,330.40 is: 11,733,495.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,188,077.60 : 28,782,116.40 = 7,822,330.40 : x
  2. Step 2: Convert to fraction form
    19,188,077.60/28,782,116.40 = 7,822,330.40/x
  3. Step 3: Cross multiply
    19,188,077.60x = 28,782,116.40 × 7,822,330.40
  4. Step 4: Simplify right side
    19,188,077.60x = 225,143,224,092,058.56
  5. Step 5: Solve for x
    x = 225,143,224,092,058.56/19,188,077.60
  6. Step 6: Final answer
    x = 11,733,495.60

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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.