Home / 18,617,019.60-27,925,529.40-12,877,456.80

Finding the Fourth Proportional to 18,617,019.60, 27,925,529.40 and 12,877,456.80

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Solution

The fourth proportional to 18,617,019.60, 27,925,529.40 and 12,877,456.80 is: 19,316,185.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,617,019.60 : 27,925,529.40 = 12,877,456.80 : x
  2. Step 2: Convert to fraction form
    18,617,019.60/27,925,529.40 = 12,877,456.80/x
  3. Step 3: Cross multiply
    18,617,019.60x = 27,925,529.40 × 12,877,456.80
  4. Step 4: Simplify right side
    18,617,019.60x = 359,609,798,465,629.94
  5. Step 5: Solve for x
    x = 359,609,798,465,629.94/18,617,019.60
  6. Step 6: Final answer
    x = 19,316,185.20

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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.