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Finding the Fourth Proportional to 8,401,815.20, 12,602,722.80 and 4,144,023.20

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Solution

The fourth proportional to 8,401,815.20, 12,602,722.80 and 4,144,023.20 is: 6,216,034.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,401,815.20 : 12,602,722.80 = 4,144,023.20 : x
  2. Step 2: Convert to fraction form
    8,401,815.20/12,602,722.80 = 4,144,023.20/x
  3. Step 3: Cross multiply
    8,401,815.20x = 12,602,722.80 × 4,144,023.20
  4. Step 4: Simplify right side
    8,401,815.20x = 52,225,975,666,368.97
  5. Step 5: Solve for x
    x = 52,225,975,666,368.97/8,401,815.20
  6. Step 6: Final answer
    x = 6,216,034.80

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1.5x scale

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.