Home / 1,225,168,419.15-1,690,875,357.03-696,611,601.95

Finding the Fourth Proportional to 1,225,168,419.15, 1,690,875,357.03 and 696,611,601.95

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Solution

The fourth proportional to 1,225,168,419.15, 1,690,875,357.03 and 696,611,601.95 is: 961,405,283.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,168,419.15 : 1,690,875,357.03 = 696,611,601.95 : x
  2. Step 2: Convert to fraction form
    1,225,168,419.15/1,690,875,357.03 = 696,611,601.95/x
  3. Step 3: Cross multiply
    1,225,168,419.15x = 1,690,875,357.03 × 696,611,601.95
  4. Step 4: Simplify right side
    1,225,168,419.15x = 1,177,883,391,149,992,192
  5. Step 5: Solve for x
    x = 1,177,883,391,149,992,192/1,225,168,419.15
  6. Step 6: Final answer
    x = 961,405,283.34

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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.