Home / 140,374,422.36-210,665,064.05-66,598,470.54

Finding the Fourth Proportional to 140,374,422.36, 210,665,064.05 and 66,598,470.54

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Solution

The fourth proportional to 140,374,422.36, 210,665,064.05 and 66,598,470.54 is: 99,946,776.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,374,422.36 : 210,665,064.05 = 66,598,470.54 : x
  2. Step 2: Convert to fraction form
    140,374,422.36/210,665,064.05 = 66,598,470.54/x
  3. Step 3: Cross multiply
    140,374,422.36x = 210,665,064.05 × 66,598,470.54
  4. Step 4: Simplify right side
    140,374,422.36x = 14,029,971,061,941,138
  5. Step 5: Solve for x
    x = 14,029,971,061,941,138/140,374,422.36
  6. Step 6: Final answer
    x = 99,946,776.81

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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.