Home / 85,015,638.60-127,334,501.10-73,678,230.60

Finding the Fourth Proportional to 85,015,638.60, 127,334,501.10 and 73,678,230.60

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Solution

The fourth proportional to 85,015,638.60, 127,334,501.10 and 73,678,230.60 is: 110,353,587.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,015,638.60 : 127,334,501.10 = 73,678,230.60 : x
  2. Step 2: Convert to fraction form
    85,015,638.60/127,334,501.10 = 73,678,230.60/x
  3. Step 3: Cross multiply
    85,015,638.60x = 127,334,501.10 × 73,678,230.60
  4. Step 4: Simplify right side
    85,015,638.60x = 9,381,780,735,381,752
  5. Step 5: Solve for x
    x = 9,381,780,735,381,752/85,015,638.60
  6. Step 6: Final answer
    x = 110,353,587.76

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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.