Home / 28,385,315.16-39,171,728.88-15,332,574.20

Finding the Fourth Proportional to 28,385,315.16, 39,171,728.88 and 15,332,574.20

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Solution

The fourth proportional to 28,385,315.16, 39,171,728.88 and 15,332,574.20 is: 21,158,949.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,385,315.16 : 39,171,728.88 = 15,332,574.20 : x
  2. Step 2: Convert to fraction form
    28,385,315.16/39,171,728.88 = 15,332,574.20/x
  3. Step 3: Cross multiply
    28,385,315.16x = 39,171,728.88 × 15,332,574.20
  4. Step 4: Simplify right side
    28,385,315.16x = 600,603,439,594,882.88
  5. Step 5: Solve for x
    x = 600,603,439,594,882.88/28,385,315.16
  6. Step 6: Final answer
    x = 21,158,949.14

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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.