Home / 300,400,720.47-450,754,737.30-143,011,589.58

Finding the Fourth Proportional to 300,400,720.47, 450,754,737.30 and 143,011,589.58

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Solution

The fourth proportional to 300,400,720.47, 450,754,737.30 and 143,011,589.58 is: 214,590,535.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,400,720.47 : 450,754,737.30 = 143,011,589.58 : x
  2. Step 2: Convert to fraction form
    300,400,720.47/450,754,737.30 = 143,011,589.58/x
  3. Step 3: Cross multiply
    300,400,720.47x = 450,754,737.30 × 143,011,589.58
  4. Step 4: Simplify right side
    300,400,720.47x = 64,463,151,491,988,328
  5. Step 5: Solve for x
    x = 64,463,151,491,988,328/300,400,720.47
  6. Step 6: Final answer
    x = 214,590,535.57

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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.