Home / 28,740,809.20-43,111,213.80-12,784,457.20

Finding the Fourth Proportional to 28,740,809.20, 43,111,213.80 and 12,784,457.20

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Solution

The fourth proportional to 28,740,809.20, 43,111,213.80 and 12,784,457.20 is: 19,176,685.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,740,809.20 : 43,111,213.80 = 12,784,457.20 : x
  2. Step 2: Convert to fraction form
    28,740,809.20/43,111,213.80 = 12,784,457.20/x
  3. Step 3: Cross multiply
    28,740,809.20x = 43,111,213.80 × 12,784,457.20
  4. Step 4: Simplify right side
    28,740,809.20x = 551,153,467,666,149.31
  5. Step 5: Solve for x
    x = 551,153,467,666,149.31/28,740,809.20
  6. Step 6: Final answer
    x = 19,176,685.80

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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.