Home / 13,334,625.80-20,001,938.70-12,812,078.60

Finding the Fourth Proportional to 13,334,625.80, 20,001,938.70 and 12,812,078.60

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Solution

The fourth proportional to 13,334,625.80, 20,001,938.70 and 12,812,078.60 is: 19,218,117.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,334,625.80 : 20,001,938.70 = 12,812,078.60 : x
  2. Step 2: Convert to fraction form
    13,334,625.80/20,001,938.70 = 12,812,078.60/x
  3. Step 3: Cross multiply
    13,334,625.80x = 20,001,938.70 × 12,812,078.60
  4. Step 4: Simplify right side
    13,334,625.80x = 256,266,410,776,781.81
  5. Step 5: Solve for x
    x = 256,266,410,776,781.81/13,334,625.80
  6. Step 6: Final answer
    x = 19,218,117.90

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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.