Home / 115,738,853.40-159,852,177-76,223,029.32

Finding the Fourth Proportional to 115,738,853.40, 159,852,177 and 76,223,029.32

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Solution

The fourth proportional to 115,738,853.40, 159,852,177 and 76,223,029.32 is: 105,275,081.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,738,853.40 : 159,852,177 = 76,223,029.32 : x
  2. Step 2: Convert to fraction form
    115,738,853.40/159,852,177 = 76,223,029.32/x
  3. Step 3: Cross multiply
    115,738,853.40x = 159,852,177 × 76,223,029.32
  4. Step 4: Simplify right side
    115,738,853.40x = 12,184,417,174,336,828
  5. Step 5: Solve for x
    x = 12,184,417,174,336,828/115,738,853.40
  6. Step 6: Final answer
    x = 105,275,081.07

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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.