Home / 66,433,986.70-99,650,980.05-57,186,913.30

Finding the Fourth Proportional to 66,433,986.70, 99,650,980.05 and 57,186,913.30

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Solution

The fourth proportional to 66,433,986.70, 99,650,980.05 and 57,186,913.30 is: 85,780,369.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,433,986.70 : 99,650,980.05 = 57,186,913.30 : x
  2. Step 2: Convert to fraction form
    66,433,986.70/99,650,980.05 = 57,186,913.30/x
  3. Step 3: Cross multiply
    66,433,986.70x = 99,650,980.05 × 57,186,913.30
  4. Step 4: Simplify right side
    66,433,986.70x = 5,698,731,956,379,379
  5. Step 5: Solve for x
    x = 5,698,731,956,379,379/66,433,986.70
  6. Step 6: Final answer
    x = 85,780,369.95

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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.