Home / 1,229,461,911.54-1,696,670,899.20-672,544,964.07

Finding the Fourth Proportional to 1,229,461,911.54, 1,696,670,899.20 and 672,544,964.07

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Solution

The fourth proportional to 1,229,461,911.54, 1,696,670,899.20 and 672,544,964.07 is: 928,119,414.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,461,911.54 : 1,696,670,899.20 = 672,544,964.07 : x
  2. Step 2: Convert to fraction form
    1,229,461,911.54/1,696,670,899.20 = 672,544,964.07/x
  3. Step 3: Cross multiply
    1,229,461,911.54x = 1,696,670,899.20 × 672,544,964.07
  4. Step 4: Simplify right side
    1,229,461,911.54x = 1,141,087,468,941,078,656
  5. Step 5: Solve for x
    x = 1,141,087,468,941,078,656/1,229,461,911.54
  6. Step 6: Final answer
    x = 928,119,414.05

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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.