Home / 1,260,998,907,921.10-1,891,741,719,370.30-411,827,147,891.05

Finding the Fourth Proportional to 1,260,998,907,921.10, 1,891,741,719,370.30 and 411,827,147,891.05

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Solution

The fourth proportional to 1,260,998,907,921.10, 1,891,741,719,370.30 and 411,827,147,891.05 is: 617,820,199,479.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,998,907,921.10 : 1,891,741,719,370.30 = 411,827,147,891.05 : x
  2. Step 2: Convert to fraction form
    1,260,998,907,921.10/1,891,741,719,370.30 = 411,827,147,891.05/x
  3. Step 3: Cross multiply
    1,260,998,907,921.10x = 1,891,741,719,370.30 × 411,827,147,891.05
  4. Step 4: Simplify right side
    1,260,998,907,921.10x = 779,070,596,834,781,716,021,248
  5. Step 5: Solve for x
    x = 779,070,596,834,781,716,021,248/1,260,998,907,921.10
  6. Step 6: Final answer
    x = 617,820,199,479.13

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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.