Home / 18,943,623.20-28,415,434.80-8,306,055.20

Finding the Fourth Proportional to 18,943,623.20, 28,415,434.80 and 8,306,055.20

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Solution

The fourth proportional to 18,943,623.20, 28,415,434.80 and 8,306,055.20 is: 12,459,082.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,943,623.20 : 28,415,434.80 = 8,306,055.20 : x
  2. Step 2: Convert to fraction form
    18,943,623.20/28,415,434.80 = 8,306,055.20/x
  3. Step 3: Cross multiply
    18,943,623.20x = 28,415,434.80 × 8,306,055.20
  4. Step 4: Simplify right side
    18,943,623.20x = 236,020,169,980,800.97
  5. Step 5: Solve for x
    x = 236,020,169,980,800.97/18,943,623.20
  6. Step 6: Final answer
    x = 12,459,082.80

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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.