Home / 313,570,020.56-432,750,862.68-188,126,937.20

Finding the Fourth Proportional to 313,570,020.56, 432,750,862.68 and 188,126,937.20

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Solution

The fourth proportional to 313,570,020.56, 432,750,862.68 and 188,126,937.20 is: 259,629,712.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,570,020.56 : 432,750,862.68 = 188,126,937.20 : x
  2. Step 2: Convert to fraction form
    313,570,020.56/432,750,862.68 = 188,126,937.20/x
  3. Step 3: Cross multiply
    313,570,020.56x = 432,750,862.68 × 188,126,937.20
  4. Step 4: Simplify right side
    313,570,020.56x = 81,412,094,366,646,176
  5. Step 5: Solve for x
    x = 81,412,094,366,646,176/313,570,020.56
  6. Step 6: Final answer
    x = 259,629,712.76

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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.