Home / 66,405,614.40-99,608,421.60-40,763,476.80

Finding the Fourth Proportional to 66,405,614.40, 99,608,421.60 and 40,763,476.80

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Solution

The fourth proportional to 66,405,614.40, 99,608,421.60 and 40,763,476.80 is: 61,145,215.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,405,614.40 : 99,608,421.60 = 40,763,476.80 : x
  2. Step 2: Convert to fraction form
    66,405,614.40/99,608,421.60 = 40,763,476.80/x
  3. Step 3: Cross multiply
    66,405,614.40x = 99,608,421.60 × 40,763,476.80
  4. Step 4: Simplify right side
    66,405,614.40x = 4,060,385,582,976,218.50
  5. Step 5: Solve for x
    x = 4,060,385,582,976,218.50/66,405,614.40
  6. Step 6: Final answer
    x = 61,145,215.20

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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.