Home / 1,229,451,643.11-1,696,371,409.38-753,242,628.27

Finding the Fourth Proportional to 1,229,451,643.11, 1,696,371,409.38 and 753,242,628.27

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Solution

The fourth proportional to 1,229,451,643.11, 1,696,371,409.38 and 753,242,628.27 is: 1,039,308,268.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,451,643.11 : 1,696,371,409.38 = 753,242,628.27 : x
  2. Step 2: Convert to fraction form
    1,229,451,643.11/1,696,371,409.38 = 753,242,628.27/x
  3. Step 3: Cross multiply
    1,229,451,643.11x = 1,696,371,409.38 × 753,242,628.27
  4. Step 4: Simplify right side
    1,229,451,643.11x = 1,277,779,258,923,475,456
  5. Step 5: Solve for x
    x = 1,277,779,258,923,475,456/1,229,451,643.11
  6. Step 6: Final answer
    x = 1,039,308,268.92

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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.