Home / 138,699,898.67-191,333,292.90-85,759,683.35

Finding the Fourth Proportional to 138,699,898.67, 191,333,292.90 and 85,759,683.35

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Solution

The fourth proportional to 138,699,898.67, 191,333,292.90 and 85,759,683.35 is: 118,303,493.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,699,898.67 : 191,333,292.90 = 85,759,683.35 : x
  2. Step 2: Convert to fraction form
    138,699,898.67/191,333,292.90 = 85,759,683.35/x
  3. Step 3: Cross multiply
    138,699,898.67x = 191,333,292.90 × 85,759,683.35
  4. Step 4: Simplify right side
    138,699,898.67x = 16,408,682,612,460,138
  5. Step 5: Solve for x
    x = 16,408,682,612,460,138/138,699,898.67
  6. Step 6: Final answer
    x = 118,303,493.87

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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.