Home / 7,808,702.94-11,712,709.35-2,128,927.86

Finding the Fourth Proportional to 7,808,702.94, 11,712,709.35 and 2,128,927.86

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Solution

The fourth proportional to 7,808,702.94, 11,712,709.35 and 2,128,927.86 is: 3,193,297.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,808,702.94 : 11,712,709.35 = 2,128,927.86 : x
  2. Step 2: Convert to fraction form
    7,808,702.94/11,712,709.35 = 2,128,927.86/x
  3. Step 3: Cross multiply
    7,808,702.94x = 11,712,709.35 × 2,128,927.86
  4. Step 4: Simplify right side
    7,808,702.94x = 24,935,513,251,297.49
  5. Step 5: Solve for x
    x = 24,935,513,251,297.49/7,808,702.94
  6. Step 6: Final answer
    x = 3,193,297.71

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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.