Home / 127,881,923.07-176,436,767.79-78,270,577.20

Finding the Fourth Proportional to 127,881,923.07, 176,436,767.79 and 78,270,577.20

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Solution

The fourth proportional to 127,881,923.07, 176,436,767.79 and 78,270,577.20 is: 107,988,739.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,881,923.07 : 176,436,767.79 = 78,270,577.20 : x
  2. Step 2: Convert to fraction form
    127,881,923.07/176,436,767.79 = 78,270,577.20/x
  3. Step 3: Cross multiply
    127,881,923.07x = 176,436,767.79 × 78,270,577.20
  4. Step 4: Simplify right side
    127,881,923.07x = 13,809,807,654,225,668
  5. Step 5: Solve for x
    x = 13,809,807,654,225,668/127,881,923.07
  6. Step 6: Final answer
    x = 107,988,739.32

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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.