Home / 28,385,587.35-39,172,104.63-15,332,846.81

Finding the Fourth Proportional to 28,385,587.35, 39,172,104.63 and 15,332,846.81

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Solution

The fourth proportional to 28,385,587.35, 39,172,104.63 and 15,332,846.81 is: 21,159,325.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,385,587.35 : 39,172,104.63 = 15,332,846.81 : x
  2. Step 2: Convert to fraction form
    28,385,587.35/39,172,104.63 = 15,332,846.81/x
  3. Step 3: Cross multiply
    28,385,587.35x = 39,172,104.63 × 15,332,846.81
  4. Step 4: Simplify right side
    28,385,587.35x = 600,619,879,321,221.25
  5. Step 5: Solve for x
    x = 600,619,879,321,221.25/28,385,587.35
  6. Step 6: Final answer
    x = 21,159,325.40

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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.