Home / 78,187,668.83-107,898,999.33-43,380,276.23

Finding the Fourth Proportional to 78,187,668.83, 107,898,999.33 and 43,380,276.23

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Solution

The fourth proportional to 78,187,668.83, 107,898,999.33 and 43,380,276.23 is: 59,864,790.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,187,668.83 : 107,898,999.33 = 43,380,276.23 : x
  2. Step 2: Convert to fraction form
    78,187,668.83/107,898,999.33 = 43,380,276.23/x
  3. Step 3: Cross multiply
    78,187,668.83x = 107,898,999.33 × 43,380,276.23
  4. Step 4: Simplify right side
    78,187,668.83x = 4,680,688,395,336,490
  5. Step 5: Solve for x
    x = 4,680,688,395,336,490/78,187,668.83
  6. Step 6: Final answer
    x = 59,864,790.26

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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.