Home / 138,699,899.42-191,333,293.94-85,759,684.10

Finding the Fourth Proportional to 138,699,899.42, 191,333,293.94 and 85,759,684.10

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Solution

The fourth proportional to 138,699,899.42, 191,333,293.94 and 85,759,684.10 is: 118,303,494.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,699,899.42 : 191,333,293.94 = 85,759,684.10 : x
  2. Step 2: Convert to fraction form
    138,699,899.42/191,333,293.94 = 85,759,684.10/x
  3. Step 3: Cross multiply
    138,699,899.42x = 191,333,293.94 × 85,759,684.10
  4. Step 4: Simplify right side
    138,699,899.42x = 16,408,682,844,721,380
  5. Step 5: Solve for x
    x = 16,408,682,844,721,380/138,699,899.42
  6. Step 6: Final answer
    x = 118,303,494.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.