Home / 18,950,980.40-28,428,461.88-6,172,480.16

Finding the Fourth Proportional to 18,950,980.40, 28,428,461.88 and 6,172,480.16

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Solution

The fourth proportional to 18,950,980.40, 28,428,461.88 and 6,172,480.16 is: 9,259,368.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,950,980.40 : 28,428,461.88 = 6,172,480.16 : x
  2. Step 2: Convert to fraction form
    18,950,980.40/28,428,461.88 = 6,172,480.16/x
  3. Step 3: Cross multiply
    18,950,980.40x = 28,428,461.88 × 6,172,480.16
  4. Step 4: Simplify right side
    18,950,980.40x = 175,474,116,933,616.31
  5. Step 5: Solve for x
    x = 175,474,116,933,616.31/18,950,980.40
  6. Step 6: Final answer
    x = 9,259,368.82

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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.