Home / 127,991,912.47-176,563,767.94-77,742,759.40

Finding the Fourth Proportional to 127,991,912.47, 176,563,767.94 and 77,742,759.40

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Solution

The fourth proportional to 127,991,912.47, 176,563,767.94 and 77,742,759.40 is: 107,245,483.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,991,912.47 : 176,563,767.94 = 77,742,759.40 : x
  2. Step 2: Convert to fraction form
    127,991,912.47/176,563,767.94 = 77,742,759.40/x
  3. Step 3: Cross multiply
    127,991,912.47x = 176,563,767.94 × 77,742,759.40
  4. Step 4: Simplify right side
    127,991,912.47x = 13,726,554,529,081,086
  5. Step 5: Solve for x
    x = 13,726,554,529,081,086/127,991,912.47
  6. Step 6: Final answer
    x = 107,245,483.44

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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.