Home / 839,879,454.60-1,259,819,181.90-666,417,112.20

Finding the Fourth Proportional to 839,879,454.60, 1,259,819,181.90 and 666,417,112.20

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Solution

The fourth proportional to 839,879,454.60, 1,259,819,181.90 and 666,417,112.20 is: 999,625,668.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,879,454.60 : 1,259,819,181.90 = 666,417,112.20 : x
  2. Step 2: Convert to fraction form
    839,879,454.60/1,259,819,181.90 = 666,417,112.20/x
  3. Step 3: Cross multiply
    839,879,454.60x = 1,259,819,181.90 × 666,417,112.20
  4. Step 4: Simplify right side
    839,879,454.60x = 839,565,061,095,964,672
  5. Step 5: Solve for x
    x = 839,565,061,095,964,672/839,879,454.60
  6. Step 6: Final answer
    x = 999,625,668.30

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Double scale
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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.