Home / 18,911,478.80-28,351,666.20-8,137,053.20

Finding the Fourth Proportional to 18,911,478.80, 28,351,666.20 and 8,137,053.20

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Solution

The fourth proportional to 18,911,478.80, 28,351,666.20 and 8,137,053.20 is: 12,198,888.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,911,478.80 : 28,351,666.20 = 8,137,053.20 : x
  2. Step 2: Convert to fraction form
    18,911,478.80/28,351,666.20 = 8,137,053.20/x
  3. Step 3: Cross multiply
    18,911,478.80x = 28,351,666.20 × 8,137,053.20
  4. Step 4: Simplify right side
    18,911,478.80x = 230,699,016,178,041.84
  5. Step 5: Solve for x
    x = 230,699,016,178,041.84/18,911,478.80
  6. Step 6: Final answer
    x = 12,198,888.23

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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.