Home / 28,054,469.10-42,081,703.65-18,480,657.90

Finding the Fourth Proportional to 28,054,469.10, 42,081,703.65 and 18,480,657.90

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Solution

The fourth proportional to 28,054,469.10, 42,081,703.65 and 18,480,657.90 is: 27,720,986.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,054,469.10 : 42,081,703.65 = 18,480,657.90 : x
  2. Step 2: Convert to fraction form
    28,054,469.10/42,081,703.65 = 18,480,657.90/x
  3. Step 3: Cross multiply
    28,054,469.10x = 42,081,703.65 × 18,480,657.90
  4. Step 4: Simplify right side
    28,054,469.10x = 777,697,569,004,831.25
  5. Step 5: Solve for x
    x = 777,697,569,004,831.25/28,054,469.10
  6. Step 6: Final answer
    x = 27,720,986.85

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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.