Home / 72,652,881.42-109,030,389.66-65,706,553.09

Finding the Fourth Proportional to 72,652,881.42, 109,030,389.66 and 65,706,553.09

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Solution

The fourth proportional to 72,652,881.42, 109,030,389.66 and 65,706,553.09 is: 98,606,014.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,652,881.42 : 109,030,389.66 = 65,706,553.09 : x
  2. Step 2: Convert to fraction form
    72,652,881.42/109,030,389.66 = 65,706,553.09/x
  3. Step 3: Cross multiply
    72,652,881.42x = 109,030,389.66 × 65,706,553.09
  4. Step 4: Simplify right side
    72,652,881.42x = 7,164,011,086,170,481
  5. Step 5: Solve for x
    x = 7,164,011,086,170,481/72,652,881.42
  6. Step 6: Final answer
    x = 98,606,014.61

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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.