Home / 138,699,902.18-191,333,297.73-85,759,686.85

Finding the Fourth Proportional to 138,699,902.18, 191,333,297.73 and 85,759,686.85

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Solution

The fourth proportional to 138,699,902.18, 191,333,297.73 and 85,759,686.85 is: 118,303,498.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,699,902.18 : 191,333,297.73 = 85,759,686.85 : x
  2. Step 2: Convert to fraction form
    138,699,902.18/191,333,297.73 = 85,759,686.85/x
  3. Step 3: Cross multiply
    138,699,902.18x = 191,333,297.73 × 85,759,686.85
  4. Step 4: Simplify right side
    138,699,902.18x = 16,408,683,697,302,614
  5. Step 5: Solve for x
    x = 16,408,683,697,302,614/138,699,902.18
  6. Step 6: Final answer
    x = 118,303,498.70

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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.