Home / 1,225,840,914.40-1,691,696,352-668,959,855.60

Finding the Fourth Proportional to 1,225,840,914.40, 1,691,696,352 and 668,959,855.60

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Solution

The fourth proportional to 1,225,840,914.40, 1,691,696,352 and 668,959,855.60 is: 923,184,186.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,840,914.40 : 1,691,696,352 = 668,959,855.60 : x
  2. Step 2: Convert to fraction form
    1,225,840,914.40/1,691,696,352 = 668,959,855.60/x
  3. Step 3: Cross multiply
    1,225,840,914.40x = 1,691,696,352 × 668,959,855.60
  4. Step 4: Simplify right side
    1,225,840,914.40x = 1,131,676,947,352,966,784
  5. Step 5: Solve for x
    x = 1,131,676,947,352,966,784/1,225,840,914.40
  6. Step 6: Final answer
    x = 923,184,186.51

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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.