Home / 10,285,736.86-15,429,444.87-5,165,533.47

Finding the Fourth Proportional to 10,285,736.86, 15,429,444.87 and 5,165,533.47

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Solution

The fourth proportional to 10,285,736.86, 15,429,444.87 and 5,165,533.47 is: 7,748,721.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,285,736.86 : 15,429,444.87 = 5,165,533.47 : x
  2. Step 2: Convert to fraction form
    10,285,736.86/15,429,444.87 = 5,165,533.47/x
  3. Step 3: Cross multiply
    10,285,736.86x = 15,429,444.87 × 5,165,533.47
  4. Step 4: Simplify right side
    10,285,736.86x = 79,701,313,889,945.33
  5. Step 5: Solve for x
    x = 79,701,313,889,945.33/10,285,736.86
  6. Step 6: Final answer
    x = 7,748,721.85

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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.