Home / 18,905,664.60-28,372,493.70-12,513,792.60

Finding the Fourth Proportional to 18,905,664.60, 28,372,493.70 and 12,513,792.60

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Solution

The fourth proportional to 18,905,664.60, 28,372,493.70 and 12,513,792.60 is: 18,779,953.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,905,664.60 : 28,372,493.70 = 12,513,792.60 : x
  2. Step 2: Convert to fraction form
    18,905,664.60/28,372,493.70 = 12,513,792.60/x
  3. Step 3: Cross multiply
    18,905,664.60x = 28,372,493.70 × 12,513,792.60
  4. Step 4: Simplify right side
    18,905,664.60x = 355,047,501,706,606.62
  5. Step 5: Solve for x
    x = 355,047,501,706,606.62/18,905,664.60
  6. Step 6: Final answer
    x = 18,779,953.48

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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.