Home / 12,147,505.12-16,762,758.24-6,990,034.24

Finding the Fourth Proportional to 12,147,505.12, 16,762,758.24 and 6,990,034.24

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Solution

The fourth proportional to 12,147,505.12, 16,762,758.24 and 6,990,034.24 is: 9,645,787.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,147,505.12 : 16,762,758.24 = 6,990,034.24 : x
  2. Step 2: Convert to fraction form
    12,147,505.12/16,762,758.24 = 6,990,034.24/x
  3. Step 3: Cross multiply
    12,147,505.12x = 16,762,758.24 × 6,990,034.24
  4. Step 4: Simplify right side
    12,147,505.12x = 117,172,254,054,442.14
  5. Step 5: Solve for x
    x = 117,172,254,054,442.14/12,147,505.12
  6. Step 6: Final answer
    x = 9,645,787.58

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1.5x scale

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.