Home / 839,808,712.60-1,259,713,068.90-805,796,488.60

Finding the Fourth Proportional to 839,808,712.60, 1,259,713,068.90 and 805,796,488.60

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Solution

The fourth proportional to 839,808,712.60, 1,259,713,068.90 and 805,796,488.60 is: 1,208,694,732.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,808,712.60 : 1,259,713,068.90 = 805,796,488.60 : x
  2. Step 2: Convert to fraction form
    839,808,712.60/1,259,713,068.90 = 805,796,488.60/x
  3. Step 3: Cross multiply
    839,808,712.60x = 1,259,713,068.90 × 805,796,488.60
  4. Step 4: Simplify right side
    839,808,712.60x = 1,015,072,367,563,149,952
  5. Step 5: Solve for x
    x = 1,015,072,367,563,149,952/839,808,712.60
  6. Step 6: Final answer
    x = 1,208,694,732.90

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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.