Home / 387,861,896.36-581,685,200.39-107,678,444.60

Finding the Fourth Proportional to 387,861,896.36, 581,685,200.39 and 107,678,444.60

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Solution

The fourth proportional to 387,861,896.36, 581,685,200.39 and 107,678,444.60 is: 161,487,782.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,861,896.36 : 581,685,200.39 = 107,678,444.60 : x
  2. Step 2: Convert to fraction form
    387,861,896.36/581,685,200.39 = 107,678,444.60/x
  3. Step 3: Cross multiply
    387,861,896.36x = 581,685,200.39 × 107,678,444.60
  4. Step 4: Simplify right side
    387,861,896.36x = 62,634,957,621,387,696
  5. Step 5: Solve for x
    x = 62,634,957,621,387,696/387,861,896.36
  6. Step 6: Final answer
    x = 161,487,782.66

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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.