Home / 261,322,628.72-391,983,942.95-97,573,173.26

Finding the Fourth Proportional to 261,322,628.72, 391,983,942.95 and 97,573,173.26

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Solution

The fourth proportional to 261,322,628.72, 391,983,942.95 and 97,573,173.26 is: 146,359,759.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,322,628.72 : 391,983,942.95 = 97,573,173.26 : x
  2. Step 2: Convert to fraction form
    261,322,628.72/391,983,942.95 = 97,573,173.26/x
  3. Step 3: Cross multiply
    261,322,628.72x = 391,983,942.95 × 97,573,173.26
  4. Step 4: Simplify right side
    261,322,628.72x = 38,247,117,180,110,440
  5. Step 5: Solve for x
    x = 38,247,117,180,110,440/261,322,628.72
  6. Step 6: Final answer
    x = 146,359,759.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.