Home / 8,631,406.40-12,943,999.20-4,370,158.40

Finding the Fourth Proportional to 8,631,406.40, 12,943,999.20 and 4,370,158.40

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Solution

The fourth proportional to 8,631,406.40, 12,943,999.20 and 4,370,158.40 is: 6,553,662.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631,406.40 : 12,943,999.20 = 4,370,158.40 : x
  2. Step 2: Convert to fraction form
    8,631,406.40/12,943,999.20 = 4,370,158.40/x
  3. Step 3: Cross multiply
    8,631,406.40x = 12,943,999.20 × 4,370,158.40
  4. Step 4: Simplify right side
    8,631,406.40x = 56,567,326,833,473.28
  5. Step 5: Solve for x
    x = 56,567,326,833,473.28/8,631,406.40
  6. Step 6: Final answer
    x = 6,553,662.78

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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.