Home / 8,692,665.80-13,038,998.70-8,324,083.40

Finding the Fourth Proportional to 8,692,665.80, 13,038,998.70 and 8,324,083.40

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Solution

The fourth proportional to 8,692,665.80, 13,038,998.70 and 8,324,083.40 is: 12,486,125.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,692,665.80 : 13,038,998.70 = 8,324,083.40 : x
  2. Step 2: Convert to fraction form
    8,692,665.80/13,038,998.70 = 8,324,083.40/x
  3. Step 3: Cross multiply
    8,692,665.80x = 13,038,998.70 × 8,324,083.40
  4. Step 4: Simplify right side
    8,692,665.80x = 108,537,712,631,291.58
  5. Step 5: Solve for x
    x = 108,537,712,631,291.58/8,692,665.80
  6. Step 6: Final answer
    x = 12,486,125.10

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Similar ratio
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1.5x scale

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.