Home / 126,362,406.80-189,543,610.20-61,707,688.40

Finding the Fourth Proportional to 126,362,406.80, 189,543,610.20 and 61,707,688.40

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Solution

The fourth proportional to 126,362,406.80, 189,543,610.20 and 61,707,688.40 is: 92,561,532.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,362,406.80 : 189,543,610.20 = 61,707,688.40 : x
  2. Step 2: Convert to fraction form
    126,362,406.80/189,543,610.20 = 61,707,688.40/x
  3. Step 3: Cross multiply
    126,362,406.80x = 189,543,610.20 × 61,707,688.40
  4. Step 4: Simplify right side
    126,362,406.80x = 11,696,298,036,432,660
  5. Step 5: Solve for x
    x = 11,696,298,036,432,660/126,362,406.80
  6. Step 6: Final answer
    x = 92,561,532.60

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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.