Home / 129,302,765.04-178,435,325.78-70,565,850.51

Finding the Fourth Proportional to 129,302,765.04, 178,435,325.78 and 70,565,850.51

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Solution

The fourth proportional to 129,302,765.04, 178,435,325.78 and 70,565,850.51 is: 97,379,514.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,302,765.04 : 178,435,325.78 = 70,565,850.51 : x
  2. Step 2: Convert to fraction form
    129,302,765.04/178,435,325.78 = 70,565,850.51/x
  3. Step 3: Cross multiply
    129,302,765.04x = 178,435,325.78 × 70,565,850.51
  4. Step 4: Simplify right side
    129,302,765.04x = 12,591,440,524,606,422
  5. Step 5: Solve for x
    x = 12,591,440,524,606,422/129,302,765.04
  6. Step 6: Final answer
    x = 97,379,514.82

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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.