Home / 138,699,900.18-191,333,294.97-85,759,684.85

Finding the Fourth Proportional to 138,699,900.18, 191,333,294.97 and 85,759,684.85

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Solution

The fourth proportional to 138,699,900.18, 191,333,294.97 and 85,759,684.85 is: 118,303,495.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,699,900.18 : 191,333,294.97 = 85,759,684.85 : x
  2. Step 2: Convert to fraction form
    138,699,900.18/191,333,294.97 = 85,759,684.85/x
  3. Step 3: Cross multiply
    138,699,900.18x = 191,333,294.97 × 85,759,684.85
  4. Step 4: Simplify right side
    138,699,900.18x = 16,408,683,076,982,624
  5. Step 5: Solve for x
    x = 16,408,683,076,982,624/138,699,900.18
  6. Step 6: Final answer
    x = 118,303,495.93

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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.