Home / 158,335,783.10-218,492,358.38-87,770,714.97

Finding the Fourth Proportional to 158,335,783.10, 218,492,358.38 and 87,770,714.97

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Solution

The fourth proportional to 158,335,783.10, 218,492,358.38 and 87,770,714.97 is: 121,117,476.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,335,783.10 : 218,492,358.38 = 87,770,714.97 : x
  2. Step 2: Convert to fraction form
    158,335,783.10/218,492,358.38 = 87,770,714.97/x
  3. Step 3: Cross multiply
    158,335,783.10x = 218,492,358.38 × 87,770,714.97
  4. Step 4: Simplify right side
    158,335,783.10x = 19,177,230,510,055,216
  5. Step 5: Solve for x
    x = 19,177,230,510,055,216/158,335,783.10
  6. Step 6: Final answer
    x = 121,117,476.64

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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.