Home / 13,913,141.80-20,869,712.70-9,661,613.80

Finding the Fourth Proportional to 13,913,141.80, 20,869,712.70 and 9,661,613.80

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Solution

The fourth proportional to 13,913,141.80, 20,869,712.70 and 9,661,613.80 is: 14,492,420.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913,141.80 : 20,869,712.70 = 9,661,613.80 : x
  2. Step 2: Convert to fraction form
    13,913,141.80/20,869,712.70 = 9,661,613.80/x
  3. Step 3: Cross multiply
    13,913,141.80x = 20,869,712.70 × 9,661,613.80
  4. Step 4: Simplify right side
    13,913,141.80x = 201,635,104,224,355.28
  5. Step 5: Solve for x
    x = 201,635,104,224,355.28/13,913,141.80
  6. Step 6: Final answer
    x = 14,492,420.70

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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.