Home / 486,139,866.12-729,285,747.60-158,539,185.72

Finding the Fourth Proportional to 486,139,866.12, 729,285,747.60 and 158,539,185.72

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Solution

The fourth proportional to 486,139,866.12, 729,285,747.60 and 158,539,185.72 is: 237,833,546.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,139,866.12 : 729,285,747.60 = 158,539,185.72 : x
  2. Step 2: Convert to fraction form
    486,139,866.12/729,285,747.60 = 158,539,185.72/x
  3. Step 3: Cross multiply
    486,139,866.12x = 729,285,747.60 × 158,539,185.72
  4. Step 4: Simplify right side
    486,139,866.12x = 115,620,368,581,705,440
  5. Step 5: Solve for x
    x = 115,620,368,581,705,440/486,139,866.12
  6. Step 6: Final answer
    x = 237,833,546.76

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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.