Home / 238,389,311.72-328,947,734.74-137,935,016.84

Finding the Fourth Proportional to 238,389,311.72, 328,947,734.74 and 137,935,016.84

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Solution

The fourth proportional to 238,389,311.72, 328,947,734.74 and 137,935,016.84 is: 190,333,245.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,389,311.72 : 328,947,734.74 = 137,935,016.84 : x
  2. Step 2: Convert to fraction form
    238,389,311.72/328,947,734.74 = 137,935,016.84/x
  3. Step 3: Cross multiply
    238,389,311.72x = 328,947,734.74 × 137,935,016.84
  4. Step 4: Simplify right side
    238,389,311.72x = 45,373,411,330,841,752
  5. Step 5: Solve for x
    x = 45,373,411,330,841,752/238,389,311.72
  6. Step 6: Final answer
    x = 190,333,245.24

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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.