Home / 18,723,005.20-28,085,429.40-9,765,053.20

Finding the Fourth Proportional to 18,723,005.20, 28,085,429.40 and 9,765,053.20

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Solution

The fourth proportional to 18,723,005.20, 28,085,429.40 and 9,765,053.20 is: 14,648,060.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,005.20 : 28,085,429.40 = 9,765,053.20 : x
  2. Step 2: Convert to fraction form
    18,723,005.20/28,085,429.40 = 9,765,053.20/x
  3. Step 3: Cross multiply
    18,723,005.20x = 28,085,429.40 × 9,765,053.20
  4. Step 4: Simplify right side
    18,723,005.20x = 274,255,712,235,844.03
  5. Step 5: Solve for x
    x = 274,255,712,235,844.03/18,723,005.20
  6. Step 6: Final answer
    x = 14,648,060.46

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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.