Home / 305,531,494,469.64-421,614,464,652.80-168,346,643,699.15

Finding the Fourth Proportional to 305,531,494,469.64, 421,614,464,652.80 and 168,346,643,699.15

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Solution

The fourth proportional to 305,531,494,469.64, 421,614,464,652.80 and 168,346,643,699.15 is: 232,307,900,638.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,531,494,469.64 : 421,614,464,652.80 = 168,346,643,699.15 : x
  2. Step 2: Convert to fraction form
    305,531,494,469.64/421,614,464,652.80 = 168,346,643,699.15/x
  3. Step 3: Cross multiply
    305,531,494,469.64x = 421,614,464,652.80 × 168,346,643,699.15
  4. Step 4: Simplify right side
    305,531,494,469.64x = 70,977,380,059,312,793,059,328
  5. Step 5: Solve for x
    x = 70,977,380,059,312,793,059,328/305,531,494,469.64
  6. Step 6: Final answer
    x = 232,307,900,638.92

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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.