Home / 66,440,918.40-99,661,377.60-40,798,780.80

Finding the Fourth Proportional to 66,440,918.40, 99,661,377.60 and 40,798,780.80

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Solution

The fourth proportional to 66,440,918.40, 99,661,377.60 and 40,798,780.80 is: 61,198,171.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,440,918.40 : 99,661,377.60 = 40,798,780.80 : x
  2. Step 2: Convert to fraction form
    66,440,918.40/99,661,377.60 = 40,798,780.80/x
  3. Step 3: Cross multiply
    66,440,918.40x = 99,661,377.60 × 40,798,780.80
  4. Step 4: Simplify right side
    66,440,918.40x = 4,066,062,698,928,429.50
  5. Step 5: Solve for x
    x = 4,066,062,698,928,429.50/66,440,918.40
  6. Step 6: Final answer
    x = 61,198,171.20

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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.