Home / 5,455,520.40-8,178,031.80-4,240,423.20

Finding the Fourth Proportional to 5,455,520.40, 8,178,031.80 and 4,240,423.20

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Solution

The fourth proportional to 5,455,520.40, 8,178,031.80 and 4,240,423.20 is: 6,356,555.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455,520.40 : 8,178,031.80 = 4,240,423.20 : x
  2. Step 2: Convert to fraction form
    5,455,520.40/8,178,031.80 = 4,240,423.20/x
  3. Step 3: Cross multiply
    5,455,520.40x = 8,178,031.80 × 4,240,423.20
  4. Step 4: Simplify right side
    5,455,520.40x = 34,678,315,775,057.76
  5. Step 5: Solve for x
    x = 34,678,315,775,057.76/5,455,520.40
  6. Step 6: Final answer
    x = 6,356,555.05

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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.