Home / 18,536,486.40-27,804,729.60-17,780,659.20

Finding the Fourth Proportional to 18,536,486.40, 27,804,729.60 and 17,780,659.20

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Solution

The fourth proportional to 18,536,486.40, 27,804,729.60 and 17,780,659.20 is: 26,670,988.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,536,486.40 : 27,804,729.60 = 17,780,659.20 : x
  2. Step 2: Convert to fraction form
    18,536,486.40/27,804,729.60 = 17,780,659.20/x
  3. Step 3: Cross multiply
    18,536,486.40x = 27,804,729.60 × 17,780,659.20
  4. Step 4: Simplify right side
    18,536,486.40x = 494,386,421,165,752.31
  5. Step 5: Solve for x
    x = 494,386,421,165,752.31/18,536,486.40
  6. Step 6: Final answer
    x = 26,670,988.80

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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.