Home / 140,988,785.40-211,483,178.10-128,871,930.60

Finding the Fourth Proportional to 140,988,785.40, 211,483,178.10 and 128,871,930.60

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Solution

The fourth proportional to 140,988,785.40, 211,483,178.10 and 128,871,930.60 is: 193,307,895.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,988,785.40 : 211,483,178.10 = 128,871,930.60 : x
  2. Step 2: Convert to fraction form
    140,988,785.40/211,483,178.10 = 128,871,930.60/x
  3. Step 3: Cross multiply
    140,988,785.40x = 211,483,178.10 × 128,871,930.60
  4. Step 4: Simplify right side
    140,988,785.40x = 27,254,245,451,170,636
  5. Step 5: Solve for x
    x = 27,254,245,451,170,636/140,988,785.40
  6. Step 6: Final answer
    x = 193,307,895.90

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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.