Home / 55,426,145.28-83,143,868.94-20,420,790

Finding the Fourth Proportional to 55,426,145.28, 83,143,868.94 and 20,420,790

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Solution

The fourth proportional to 55,426,145.28, 83,143,868.94 and 20,420,790 is: 30,632,898.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,426,145.28 : 83,143,868.94 = 20,420,790 : x
  2. Step 2: Convert to fraction form
    55,426,145.28/83,143,868.94 = 20,420,790/x
  3. Step 3: Cross multiply
    55,426,145.28x = 83,143,868.94 × 20,420,790
  4. Step 4: Simplify right side
    55,426,145.28x = 1,697,863,487,411,262.50
  5. Step 5: Solve for x
    x = 1,697,863,487,411,262.50/55,426,145.28
  6. Step 6: Final answer
    x = 30,632,898.59

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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.