Home / 66,521,664.60-99,773,165.70-21,088,051.80

Finding the Fourth Proportional to 66,521,664.60, 99,773,165.70 and 21,088,051.80

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Solution

The fourth proportional to 66,521,664.60, 99,773,165.70 and 21,088,051.80 is: 31,629,119.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,521,664.60 : 99,773,165.70 = 21,088,051.80 : x
  2. Step 2: Convert to fraction form
    66,521,664.60/99,773,165.70 = 21,088,051.80/x
  3. Step 3: Cross multiply
    66,521,664.60x = 99,773,165.70 × 21,088,051.80
  4. Step 4: Simplify right side
    66,521,664.60x = 2,104,021,686,531,583.50
  5. Step 5: Solve for x
    x = 2,104,021,686,531,583.50/66,521,664.60
  6. Step 6: Final answer
    x = 31,629,119.61

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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.