Home / 1,307,106,840.20-1,960,659,062.36-409,720,072.16

Finding the Fourth Proportional to 1,307,106,840.20, 1,960,659,062.36 and 409,720,072.16

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Solution

The fourth proportional to 1,307,106,840.20, 1,960,659,062.36 and 409,720,072.16 is: 614,579,732.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,106,840.20 : 1,960,659,062.36 = 409,720,072.16 : x
  2. Step 2: Convert to fraction form
    1,307,106,840.20/1,960,659,062.36 = 409,720,072.16/x
  3. Step 3: Cross multiply
    1,307,106,840.20x = 1,960,659,062.36 × 409,720,072.16
  4. Step 4: Simplify right side
    1,307,106,840.20x = 803,321,372,511,297,152
  5. Step 5: Solve for x
    x = 803,321,372,511,297,152/1,307,106,840.20
  6. Step 6: Final answer
    x = 614,579,732.74

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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.