Home / 120,083,424-180,138,365.76-38,183,141.76

Finding the Fourth Proportional to 120,083,424, 180,138,365.76 and 38,183,141.76

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Solution

The fourth proportional to 120,083,424, 180,138,365.76 and 38,183,141.76 is: 57,278,919.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,083,424 : 180,138,365.76 = 38,183,141.76 : x
  2. Step 2: Convert to fraction form
    120,083,424/180,138,365.76 = 38,183,141.76/x
  3. Step 3: Cross multiply
    120,083,424x = 180,138,365.76 × 38,183,141.76
  4. Step 4: Simplify right side
    120,083,424x = 6,878,248,756,228,809
  5. Step 5: Solve for x
    x = 6,878,248,756,228,809/120,083,424
  6. Step 6: Final answer
    x = 57,278,919.33

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1.5x scale

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.