Home / 8,092,827.20-12,139,240.80-7,719,579.20

Finding the Fourth Proportional to 8,092,827.20, 12,139,240.80 and 7,719,579.20

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Solution

The fourth proportional to 8,092,827.20, 12,139,240.80 and 7,719,579.20 is: 11,579,368.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,092,827.20 : 12,139,240.80 = 7,719,579.20 : x
  2. Step 2: Convert to fraction form
    8,092,827.20/12,139,240.80 = 7,719,579.20/x
  3. Step 3: Cross multiply
    8,092,827.20x = 12,139,240.80 × 7,719,579.20
  4. Step 4: Simplify right side
    8,092,827.20x = 93,709,830,783,471.38
  5. Step 5: Solve for x
    x = 93,709,830,783,471.38/8,092,827.20
  6. Step 6: Final answer
    x = 11,579,368.80

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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.