Home / 30,310,154.55-45,493,975.58-18,760,685.69

Finding the Fourth Proportional to 30,310,154.55, 45,493,975.58 and 18,760,685.69

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Solution

The fourth proportional to 30,310,154.55, 45,493,975.58 and 18,760,685.69 is: 28,158,819.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,310,154.55 : 45,493,975.58 = 18,760,685.69 : x
  2. Step 2: Convert to fraction form
    30,310,154.55/45,493,975.58 = 18,760,685.69/x
  3. Step 3: Cross multiply
    30,310,154.55x = 45,493,975.58 × 18,760,685.69
  4. Step 4: Simplify right side
    30,310,154.55x = 853,498,176,323,642.12
  5. Step 5: Solve for x
    x = 853,498,176,323,642.12/30,310,154.55
  6. Step 6: Final answer
    x = 28,158,819.68

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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.