Home / 20,710,764.64-28,569,003.96-12,962,354.86

Finding the Fourth Proportional to 20,710,764.64, 28,569,003.96 and 12,962,354.86

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Solution

The fourth proportional to 20,710,764.64, 28,569,003.96 and 12,962,354.86 is: 17,880,632.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710,764.64 : 28,569,003.96 = 12,962,354.86 : x
  2. Step 2: Convert to fraction form
    20,710,764.64/28,569,003.96 = 12,962,354.86/x
  3. Step 3: Cross multiply
    20,710,764.64x = 28,569,003.96 × 12,962,354.86
  4. Step 4: Simplify right side
    20,710,764.64x = 370,321,567,326,265.25
  5. Step 5: Solve for x
    x = 370,321,567,326,265.25/20,710,764.64
  6. Step 6: Final answer
    x = 17,880,632.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.