Home / 49,889,446.80-74,862,163.80-21,130,688.40

Finding the Fourth Proportional to 49,889,446.80, 74,862,163.80 and 21,130,688.40

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Solution

The fourth proportional to 49,889,446.80, 74,862,163.80 and 21,130,688.40 is: 31,707,889.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,889,446.80 : 74,862,163.80 = 21,130,688.40 : x
  2. Step 2: Convert to fraction form
    49,889,446.80/74,862,163.80 = 21,130,688.40/x
  3. Step 3: Cross multiply
    49,889,446.80x = 74,862,163.80 × 21,130,688.40
  4. Step 4: Simplify right side
    49,889,446.80x = 1,581,889,056,207,559.75
  5. Step 5: Solve for x
    x = 1,581,889,056,207,559.75/49,889,446.80
  6. Step 6: Final answer
    x = 31,707,889.30

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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.