Home / 487,228,673.49-730,885,977.50-137,477,808.78

Finding the Fourth Proportional to 487,228,673.49, 730,885,977.50 and 137,477,808.78

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Solution

The fourth proportional to 487,228,673.49, 730,885,977.50 and 137,477,808.78 is: 206,228,836.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,228,673.49 : 730,885,977.50 = 137,477,808.78 : x
  2. Step 2: Convert to fraction form
    487,228,673.49/730,885,977.50 = 137,477,808.78/x
  3. Step 3: Cross multiply
    487,228,673.49x = 730,885,977.50 × 137,477,808.78
  4. Step 4: Simplify right side
    487,228,673.49x = 100,480,602,654,040,992
  5. Step 5: Solve for x
    x = 100,480,602,654,040,992/487,228,673.49
  6. Step 6: Final answer
    x = 206,228,836.93

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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.