Home / 144,582,679.80-217,041,981.30-87,139,812.60

Finding the Fourth Proportional to 144,582,679.80, 217,041,981.30 and 87,139,812.60

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Solution

The fourth proportional to 144,582,679.80, 217,041,981.30 and 87,139,812.60 is: 130,810,949.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,582,679.80 : 217,041,981.30 = 87,139,812.60 : x
  2. Step 2: Convert to fraction form
    144,582,679.80/217,041,981.30 = 87,139,812.60/x
  3. Step 3: Cross multiply
    144,582,679.80x = 217,041,981.30 × 87,139,812.60
  4. Step 4: Simplify right side
    144,582,679.80x = 18,912,997,576,814,704
  5. Step 5: Solve for x
    x = 18,912,997,576,814,704/144,582,679.80
  6. Step 6: Final answer
    x = 130,810,949.16

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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.