Home / 20,818,120.50-28,744,159.77-16,710,744.96

Finding the Fourth Proportional to 20,818,120.50, 28,744,159.77 and 16,710,744.96

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Solution

The fourth proportional to 20,818,120.50, 28,744,159.77 and 16,710,744.96 is: 23,072,991.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,818,120.50 : 28,744,159.77 = 16,710,744.96 : x
  2. Step 2: Convert to fraction form
    20,818,120.50/28,744,159.77 = 16,710,744.96/x
  3. Step 3: Cross multiply
    20,818,120.50x = 28,744,159.77 × 16,710,744.96
  4. Step 4: Simplify right side
    20,818,120.50x = 480,336,323,005,962.25
  5. Step 5: Solve for x
    x = 480,336,323,005,962.25/20,818,120.50
  6. Step 6: Final answer
    x = 23,072,991.77

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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.