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Finding the Fourth Proportional to 839,808,801.60, 1,259,713,202.40 and 759,454,922.40

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Solution

The fourth proportional to 839,808,801.60, 1,259,713,202.40 and 759,454,922.40 is: 1,139,182,383.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,808,801.60 : 1,259,713,202.40 = 759,454,922.40 : x
  2. Step 2: Convert to fraction form
    839,808,801.60/1,259,713,202.40 = 759,454,922.40/x
  3. Step 3: Cross multiply
    839,808,801.60x = 1,259,713,202.40 × 759,454,922.40
  4. Step 4: Simplify right side
    839,808,801.60x = 956,695,392,374,947,584
  5. Step 5: Solve for x
    x = 956,695,392,374,947,584/839,808,801.60
  6. Step 6: Final answer
    x = 1,139,182,383.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.