Home / 305,531,496,170.41-421,614,466,987.18-168,346,645,396.20

Finding the Fourth Proportional to 305,531,496,170.41, 421,614,466,987.18 and 168,346,645,396.20

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Solution

The fourth proportional to 305,531,496,170.41, 421,614,466,987.18 and 168,346,645,396.20 is: 232,307,902,973.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,531,496,170.41 : 421,614,466,987.18 = 168,346,645,396.20 : x
  2. Step 2: Convert to fraction form
    305,531,496,170.41/421,614,466,987.18 = 168,346,645,396.20/x
  3. Step 3: Cross multiply
    305,531,496,170.41x = 421,614,466,987.18 × 168,346,645,396.20
  4. Step 4: Simplify right side
    305,531,496,170.41x = 70,977,381,167,798,662,725,632
  5. Step 5: Solve for x
    x = 70,977,381,167,798,662,725,632/305,531,496,170.41
  6. Step 6: Final answer
    x = 232,307,902,973.81

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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.