Home / 1,307,106,842.72-1,960,659,066.10-409,720,074.66

Finding the Fourth Proportional to 1,307,106,842.72, 1,960,659,066.10 and 409,720,074.66

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Solution

The fourth proportional to 1,307,106,842.72, 1,960,659,066.10 and 409,720,074.66 is: 614,579,736.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,106,842.72 : 1,960,659,066.10 = 409,720,074.66 : x
  2. Step 2: Convert to fraction form
    1,307,106,842.72/1,960,659,066.10 = 409,720,074.66/x
  3. Step 3: Cross multiply
    1,307,106,842.72x = 1,960,659,066.10 × 409,720,074.66
  4. Step 4: Simplify right side
    1,307,106,842.72x = 803,321,378,945,297,920
  5. Step 5: Solve for x
    x = 803,321,378,945,297,920/1,307,106,842.72
  6. Step 6: Final answer
    x = 614,579,736.48

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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.