Home / 12,784,359.43-17,638,039.73-7,276,354.77

Finding the Fourth Proportional to 12,784,359.43, 17,638,039.73 and 7,276,354.77

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Solution

The fourth proportional to 12,784,359.43, 17,638,039.73 and 7,276,354.77 is: 10,038,878.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,784,359.43 : 17,638,039.73 = 7,276,354.77 : x
  2. Step 2: Convert to fraction form
    12,784,359.43/17,638,039.73 = 7,276,354.77/x
  3. Step 3: Cross multiply
    12,784,359.43x = 17,638,039.73 × 7,276,354.77
  4. Step 4: Simplify right side
    12,784,359.43x = 128,340,634,566,239.05
  5. Step 5: Solve for x
    x = 128,340,634,566,239.05/12,784,359.43
  6. Step 6: Final answer
    x = 10,038,878.78

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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.