Home / 12,938,132.80-19,423,173.60-8,145,812.80

Finding the Fourth Proportional to 12,938,132.80, 19,423,173.60 and 8,145,812.80

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Solution

The fourth proportional to 12,938,132.80, 19,423,173.60 and 8,145,812.80 is: 12,228,776.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,132.80 : 19,423,173.60 = 8,145,812.80 : x
  2. Step 2: Convert to fraction form
    12,938,132.80/19,423,173.60 = 8,145,812.80/x
  3. Step 3: Cross multiply
    12,938,132.80x = 19,423,173.60 × 8,145,812.80
  4. Step 4: Simplify right side
    12,938,132.80x = 158,217,536,127,502.09
  5. Step 5: Solve for x
    x = 158,217,536,127,502.09/12,938,132.80
  6. Step 6: Final answer
    x = 12,228,776.64

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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.