Home / 120,783,041.76-166,685,316.30-68,576,934.72

Finding the Fourth Proportional to 120,783,041.76, 166,685,316.30 and 68,576,934.72

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Solution

The fourth proportional to 120,783,041.76, 166,685,316.30 and 68,576,934.72 is: 94,638,849.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,783,041.76 : 166,685,316.30 = 68,576,934.72 : x
  2. Step 2: Convert to fraction form
    120,783,041.76/166,685,316.30 = 68,576,934.72/x
  3. Step 3: Cross multiply
    120,783,041.76x = 166,685,316.30 × 68,576,934.72
  4. Step 4: Simplify right side
    120,783,041.76x = 11,430,768,054,687,652
  5. Step 5: Solve for x
    x = 11,430,768,054,687,652/120,783,041.76
  6. Step 6: Final answer
    x = 94,638,849.03

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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.