Home / 27,678,998.80-38,196,252.21-15,288,870.16

Finding the Fourth Proportional to 27,678,998.80, 38,196,252.21 and 15,288,870.16

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Solution

The fourth proportional to 27,678,998.80, 38,196,252.21 and 15,288,870.16 is: 21,098,217.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,678,998.80 : 38,196,252.21 = 15,288,870.16 : x
  2. Step 2: Convert to fraction form
    27,678,998.80/38,196,252.21 = 15,288,870.16/x
  3. Step 3: Cross multiply
    27,678,998.80x = 38,196,252.21 × 15,288,870.16
  4. Step 4: Simplify right side
    27,678,998.80x = 583,977,540,637,303.12
  5. Step 5: Solve for x
    x = 583,977,540,637,303.12/27,678,998.80
  6. Step 6: Final answer
    x = 21,098,217.64

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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.