Home / 30,821,814.46-42,534,416.55-18,596,309.50

Finding the Fourth Proportional to 30,821,814.46, 42,534,416.55 and 18,596,309.50

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Solution

The fourth proportional to 30,821,814.46, 42,534,416.55 and 18,596,309.50 is: 25,663,095.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,821,814.46 : 42,534,416.55 = 18,596,309.50 : x
  2. Step 2: Convert to fraction form
    30,821,814.46/42,534,416.55 = 18,596,309.50/x
  3. Step 3: Cross multiply
    30,821,814.46x = 42,534,416.55 × 18,596,309.50
  4. Step 4: Simplify right side
    30,821,814.46x = 790,983,174,565,722.12
  5. Step 5: Solve for x
    x = 790,983,174,565,722.12/30,821,814.46
  6. Step 6: Final answer
    x = 25,663,095.71

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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.