Home / 21,562,465.47-29,755,795.60-13,189,219.17

Finding the Fourth Proportional to 21,562,465.47, 29,755,795.60 and 13,189,219.17

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Solution

The fourth proportional to 21,562,465.47, 29,755,795.60 and 13,189,219.17 is: 18,200,873.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,562,465.47 : 29,755,795.60 = 13,189,219.17 : x
  2. Step 2: Convert to fraction form
    21,562,465.47/29,755,795.60 = 13,189,219.17/x
  3. Step 3: Cross multiply
    21,562,465.47x = 29,755,795.60 × 13,189,219.17
  4. Step 4: Simplify right side
    21,562,465.47x = 392,455,709,746,121.69
  5. Step 5: Solve for x
    x = 392,455,709,746,121.69/21,562,465.47
  6. Step 6: Final answer
    x = 18,200,873.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.