Home / 138,699,962.73-191,333,381.15-85,759,747.38

Finding the Fourth Proportional to 138,699,962.73, 191,333,381.15 and 85,759,747.38

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Solution

The fourth proportional to 138,699,962.73, 191,333,381.15 and 85,759,747.38 is: 118,303,582.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,699,962.73 : 191,333,381.15 = 85,759,747.38 : x
  2. Step 2: Convert to fraction form
    138,699,962.73/191,333,381.15 = 85,759,747.38/x
  3. Step 3: Cross multiply
    138,699,962.73x = 191,333,381.15 × 85,759,747.38
  4. Step 4: Simplify right side
    138,699,962.73x = 16,408,702,432,356,456
  5. Step 5: Solve for x
    x = 16,408,702,432,356,456/138,699,962.73
  6. Step 6: Final answer
    x = 118,303,582.13

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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.