Home / 125,214,904.80-187,598,408.40-77,289,861.60

Finding the Fourth Proportional to 125,214,904.80, 187,598,408.40 and 77,289,861.60

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Solution

The fourth proportional to 125,214,904.80, 187,598,408.40 and 77,289,861.60 is: 115,796,558.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,214,904.80 : 187,598,408.40 = 77,289,861.60 : x
  2. Step 2: Convert to fraction form
    125,214,904.80/187,598,408.40 = 77,289,861.60/x
  3. Step 3: Cross multiply
    125,214,904.80x = 187,598,408.40 × 77,289,861.60
  4. Step 4: Simplify right side
    125,214,904.80x = 14,499,455,021,616,276
  5. Step 5: Solve for x
    x = 14,499,455,021,616,276/125,214,904.80
  6. Step 6: Final answer
    x = 115,796,558.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.