Home / 128,535,194.35-177,312,980.23-82,076,601.07

Finding the Fourth Proportional to 128,535,194.35, 177,312,980.23 and 82,076,601.07

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Solution

The fourth proportional to 128,535,194.35, 177,312,980.23 and 82,076,601.07 is: 113,223,828.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,535,194.35 : 177,312,980.23 = 82,076,601.07 : x
  2. Step 2: Convert to fraction form
    128,535,194.35/177,312,980.23 = 82,076,601.07/x
  3. Step 3: Cross multiply
    128,535,194.35x = 177,312,980.23 × 82,076,601.07
  4. Step 4: Simplify right side
    128,535,194.35x = 14,553,246,742,870,504
  5. Step 5: Solve for x
    x = 14,553,246,742,870,504/128,535,194.35
  6. Step 6: Final answer
    x = 113,223,828.05

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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.