Home / 21,288,007.80-31,932,011.70-6,142,433.40

Finding the Fourth Proportional to 21,288,007.80, 31,932,011.70 and 6,142,433.40

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Solution

The fourth proportional to 21,288,007.80, 31,932,011.70 and 6,142,433.40 is: 9,213,650.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,288,007.80 : 31,932,011.70 = 6,142,433.40 : x
  2. Step 2: Convert to fraction form
    21,288,007.80/31,932,011.70 = 6,142,433.40/x
  3. Step 3: Cross multiply
    21,288,007.80x = 31,932,011.70 × 6,142,433.40
  4. Step 4: Simplify right side
    21,288,007.80x = 196,140,255,195,270.78
  5. Step 5: Solve for x
    x = 196,140,255,195,270.78/21,288,007.80
  6. Step 6: Final answer
    x = 9,213,650.10

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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.