Home / 30,745,009.62-42,428,970.45-16,994,857.86

Finding the Fourth Proportional to 30,745,009.62, 42,428,970.45 and 16,994,857.86

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Solution

The fourth proportional to 30,745,009.62, 42,428,970.45 and 16,994,857.86 is: 23,453,377.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,745,009.62 : 42,428,970.45 = 16,994,857.86 : x
  2. Step 2: Convert to fraction form
    30,745,009.62/42,428,970.45 = 16,994,857.86/x
  3. Step 3: Cross multiply
    30,745,009.62x = 42,428,970.45 × 16,994,857.86
  4. Step 4: Simplify right side
    30,745,009.62x = 721,074,321,943,890.25
  5. Step 5: Solve for x
    x = 721,074,321,943,890.25/30,745,009.62
  6. Step 6: Final answer
    x = 23,453,377.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.