Home / 143,085,332.60-214,698,857.70-81,721,611.80

Finding the Fourth Proportional to 143,085,332.60, 214,698,857.70 and 81,721,611.80

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Solution

The fourth proportional to 143,085,332.60, 214,698,857.70 and 81,721,611.80 is: 122,622,887.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,085,332.60 : 214,698,857.70 = 81,721,611.80 : x
  2. Step 2: Convert to fraction form
    143,085,332.60/214,698,857.70 = 81,721,611.80/x
  3. Step 3: Cross multiply
    143,085,332.60x = 214,698,857.70 × 81,721,611.80
  4. Step 4: Simplify right side
    143,085,332.60x = 17,545,536,702,862,840
  5. Step 5: Solve for x
    x = 17,545,536,702,862,840/143,085,332.60
  6. Step 6: Final answer
    x = 122,622,887.92

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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.