Home / 13,136,381.34-18,140,725.59-12,420,717.02

Finding the Fourth Proportional to 13,136,381.34, 18,140,725.59 and 12,420,717.02

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Solution

The fourth proportional to 13,136,381.34, 18,140,725.59 and 12,420,717.02 is: 17,152,426.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,136,381.34 : 18,140,725.59 = 12,420,717.02 : x
  2. Step 2: Convert to fraction form
    13,136,381.34/18,140,725.59 = 12,420,717.02/x
  3. Step 3: Cross multiply
    13,136,381.34x = 18,140,725.59 × 12,420,717.02
  4. Step 4: Simplify right side
    13,136,381.34x = 225,320,819,090,862.53
  5. Step 5: Solve for x
    x = 225,320,819,090,862.53/13,136,381.34
  6. Step 6: Final answer
    x = 17,152,426.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.