Home / 298,457,006.80-447,766,111.63-91,189,765.71

Finding the Fourth Proportional to 298,457,006.80, 447,766,111.63 and 91,189,765.71

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Solution

The fourth proportional to 298,457,006.80, 447,766,111.63 and 91,189,765.71 is: 136,809,275.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,457,006.80 : 447,766,111.63 = 91,189,765.71 : x
  2. Step 2: Convert to fraction form
    298,457,006.80/447,766,111.63 = 91,189,765.71/x
  3. Step 3: Cross multiply
    298,457,006.80x = 447,766,111.63 × 91,189,765.71
  4. Step 4: Simplify right side
    298,457,006.80x = 40,831,686,811,070,016
  5. Step 5: Solve for x
    x = 40,831,686,811,070,016/298,457,006.80
  6. Step 6: Final answer
    x = 136,809,275.31

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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.