Home / 10,643,999.20-15,942,379.20-8,754,431.20

Finding the Fourth Proportional to 10,643,999.20, 15,942,379.20 and 8,754,431.20

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Solution

The fourth proportional to 10,643,999.20, 15,942,379.20 and 8,754,431.20 is: 13,112,220.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,643,999.20 : 15,942,379.20 = 8,754,431.20 : x
  2. Step 2: Convert to fraction form
    10,643,999.20/15,942,379.20 = 8,754,431.20/x
  3. Step 3: Cross multiply
    10,643,999.20x = 15,942,379.20 × 8,754,431.20
  4. Step 4: Simplify right side
    10,643,999.20x = 139,566,461,870,711.02
  5. Step 5: Solve for x
    x = 139,566,461,870,711.02/10,643,999.20
  6. Step 6: Final answer
    x = 13,112,220.25

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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.