Home / 785,450,340-1,178,345,579.76-300,776,165.28

Finding the Fourth Proportional to 785,450,340, 1,178,345,579.76 and 300,776,165.28

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Solution

The fourth proportional to 785,450,340, 1,178,345,579.76 and 300,776,165.28 is: 451,229,373.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,450,340 : 1,178,345,579.76 = 300,776,165.28 : x
  2. Step 2: Convert to fraction form
    785,450,340/1,178,345,579.76 = 300,776,165.28/x
  3. Step 3: Cross multiply
    785,450,340x = 1,178,345,579.76 × 300,776,165.28
  4. Step 4: Simplify right side
    785,450,340x = 354,418,264,854,851,136
  5. Step 5: Solve for x
    x = 354,418,264,854,851,136/785,450,340
  6. Step 6: Final answer
    x = 451,229,373.53

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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.