Home / 140,211,047.20-210,316,570.80-82,730,855.20

Finding the Fourth Proportional to 140,211,047.20, 210,316,570.80 and 82,730,855.20

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Solution

The fourth proportional to 140,211,047.20, 210,316,570.80 and 82,730,855.20 is: 124,096,282.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,211,047.20 : 210,316,570.80 = 82,730,855.20 : x
  2. Step 2: Convert to fraction form
    140,211,047.20/210,316,570.80 = 82,730,855.20/x
  3. Step 3: Cross multiply
    140,211,047.20x = 210,316,570.80 × 82,730,855.20
  4. Step 4: Simplify right side
    140,211,047.20x = 17,399,669,765,015,350
  5. Step 5: Solve for x
    x = 17,399,669,765,015,350/140,211,047.20
  6. Step 6: Final answer
    x = 124,096,282.80

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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.