Home / 4,678,520.40-7,017,780.60-2,662,981.20

Finding the Fourth Proportional to 4,678,520.40, 7,017,780.60 and 2,662,981.20

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Solution

The fourth proportional to 4,678,520.40, 7,017,780.60 and 2,662,981.20 is: 3,994,471.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678,520.40 : 7,017,780.60 = 2,662,981.20 : x
  2. Step 2: Convert to fraction form
    4,678,520.40/7,017,780.60 = 2,662,981.20/x
  3. Step 3: Cross multiply
    4,678,520.40x = 7,017,780.60 × 2,662,981.20
  4. Step 4: Simplify right side
    4,678,520.40x = 18,688,217,803,524.72
  5. Step 5: Solve for x
    x = 18,688,217,803,524.72/4,678,520.40
  6. Step 6: Final answer
    x = 3,994,471.80

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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.