Home / 131,868,790.75-181,978,931.24-73,140,448.69

Finding the Fourth Proportional to 131,868,790.75, 181,978,931.24 and 73,140,448.69

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Solution

The fourth proportional to 131,868,790.75, 181,978,931.24 and 73,140,448.69 is: 100,933,819.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,868,790.75 : 181,978,931.24 = 73,140,448.69 : x
  2. Step 2: Convert to fraction form
    131,868,790.75/181,978,931.24 = 73,140,448.69/x
  3. Step 3: Cross multiply
    131,868,790.75x = 181,978,931.24 × 73,140,448.69
  4. Step 4: Simplify right side
    131,868,790.75x = 13,310,020,683,020,258
  5. Step 5: Solve for x
    x = 13,310,020,683,020,258/131,868,790.75
  6. Step 6: Final answer
    x = 100,933,819.19

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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.