Home / 399,845,639.39-599,850,261.69-137,496,117.92

Finding the Fourth Proportional to 399,845,639.39, 599,850,261.69 and 137,496,117.92

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Solution

The fourth proportional to 399,845,639.39, 599,850,261.69 and 137,496,117.92 is: 206,272,306.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,845,639.39 : 599,850,261.69 = 137,496,117.92 : x
  2. Step 2: Convert to fraction form
    399,845,639.39/599,850,261.69 = 137,496,117.92/x
  3. Step 3: Cross multiply
    399,845,639.39x = 599,850,261.69 × 137,496,117.92
  4. Step 4: Simplify right side
    399,845,639.39x = 82,477,082,312,671,856
  5. Step 5: Solve for x
    x = 82,477,082,312,671,856/399,845,639.39
  6. Step 6: Final answer
    x = 206,272,306.58

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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.