Home / 20,128,300.20-30,197,480.40-6,482,732.40

Finding the Fourth Proportional to 20,128,300.20, 30,197,480.40 and 6,482,732.40

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Solution

The fourth proportional to 20,128,300.20, 30,197,480.40 and 6,482,732.40 is: 9,725,718.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,128,300.20 : 30,197,480.40 = 6,482,732.40 : x
  2. Step 2: Convert to fraction form
    20,128,300.20/30,197,480.40 = 6,482,732.40/x
  3. Step 3: Cross multiply
    20,128,300.20x = 30,197,480.40 × 6,482,732.40
  4. Step 4: Simplify right side
    20,128,300.20x = 195,762,184,587,444.97
  5. Step 5: Solve for x
    x = 195,762,184,587,444.97/20,128,300.20
  6. Step 6: Final answer
    x = 9,725,718.65

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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.