Home / 839,291,217.20-1,258,936,825.80-788,230,890.80

Finding the Fourth Proportional to 839,291,217.20, 1,258,936,825.80 and 788,230,890.80

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Solution

The fourth proportional to 839,291,217.20, 1,258,936,825.80 and 788,230,890.80 is: 1,182,346,336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,291,217.20 : 1,258,936,825.80 = 788,230,890.80 : x
  2. Step 2: Convert to fraction form
    839,291,217.20/1,258,936,825.80 = 788,230,890.80/x
  3. Step 3: Cross multiply
    839,291,217.20x = 1,258,936,825.80 × 788,230,890.80
  4. Step 4: Simplify right side
    839,291,217.20x = 992,332,895,661,258,368
  5. Step 5: Solve for x
    x = 992,332,895,661,258,368/839,291,217.20
  6. Step 6: Final answer
    x = 1,182,346,336.20

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Double scale
Find fourth proportional to 839,291,218.20, 1,258,936,827.30 and 788,230,891.80
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.