Home / 30,992,359.86-42,768,172.30-16,863,604.68

Finding the Fourth Proportional to 30,992,359.86, 42,768,172.30 and 16,863,604.68

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Solution

The fourth proportional to 30,992,359.86, 42,768,172.30 and 16,863,604.68 is: 23,271,075.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,992,359.86 : 42,768,172.30 = 16,863,604.68 : x
  2. Step 2: Convert to fraction form
    30,992,359.86/42,768,172.30 = 16,863,604.68/x
  3. Step 3: Cross multiply
    30,992,359.86x = 42,768,172.30 × 16,863,604.68
  4. Step 4: Simplify right side
    30,992,359.86x = 721,225,550,553,693.62
  5. Step 5: Solve for x
    x = 721,225,550,553,693.62/30,992,359.86
  6. Step 6: Final answer
    x = 23,271,075.64

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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.