Home / 72,770,693.55-109,156,040.33-66,818,554.35

Finding the Fourth Proportional to 72,770,693.55, 109,156,040.33 and 66,818,554.35

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Solution

The fourth proportional to 72,770,693.55, 109,156,040.33 and 66,818,554.35 is: 100,227,831.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,770,693.55 : 109,156,040.33 = 66,818,554.35 : x
  2. Step 2: Convert to fraction form
    72,770,693.55/109,156,040.33 = 66,818,554.35/x
  3. Step 3: Cross multiply
    72,770,693.55x = 109,156,040.33 × 66,818,554.35
  4. Step 4: Simplify right side
    72,770,693.55x = 7,293,648,813,086,805
  5. Step 5: Solve for x
    x = 7,293,648,813,086,805/72,770,693.55
  6. Step 6: Final answer
    x = 100,227,831.53

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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.