Home / 143,085,303.60-214,698,814.20-81,721,582.80

Finding the Fourth Proportional to 143,085,303.60, 214,698,814.20 and 81,721,582.80

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Solution

The fourth proportional to 143,085,303.60, 214,698,814.20 and 81,721,582.80 is: 122,622,844.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,085,303.60 : 214,698,814.20 = 81,721,582.80 : x
  2. Step 2: Convert to fraction form
    143,085,303.60/214,698,814.20 = 81,721,582.80/x
  3. Step 3: Cross multiply
    143,085,303.60x = 214,698,814.20 × 81,721,582.80
  4. Step 4: Simplify right side
    143,085,303.60x = 17,545,526,921,707,114
  5. Step 5: Solve for x
    x = 17,545,526,921,707,114/143,085,303.60
  6. Step 6: Final answer
    x = 122,622,844.42

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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.