Home / 1,280,827,497.12-1,767,543,458.04-694,116,633.12

Finding the Fourth Proportional to 1,280,827,497.12, 1,767,543,458.04 and 694,116,633.12

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Solution

The fourth proportional to 1,280,827,497.12, 1,767,543,458.04 and 694,116,633.12 is: 957,881,773.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,827,497.12 : 1,767,543,458.04 = 694,116,633.12 : x
  2. Step 2: Convert to fraction form
    1,280,827,497.12/1,767,543,458.04 = 694,116,633.12/x
  3. Step 3: Cross multiply
    1,280,827,497.12x = 1,767,543,458.04 × 694,116,633.12
  4. Step 4: Simplify right side
    1,280,827,497.12x = 1,226,881,313,988,006,656
  5. Step 5: Solve for x
    x = 1,226,881,313,988,006,656/1,280,827,497.12
  6. Step 6: Final answer
    x = 957,881,773.11

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.