Home / 1,277,645,595.85-1,916,468,393.78-459,651,608.65

Finding the Fourth Proportional to 1,277,645,595.85, 1,916,468,393.78 and 459,651,608.65

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Solution

The fourth proportional to 1,277,645,595.85, 1,916,468,393.78 and 459,651,608.65 is: 689,477,412.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,645,595.85 : 1,916,468,393.78 = 459,651,608.65 : x
  2. Step 2: Convert to fraction form
    1,277,645,595.85/1,916,468,393.78 = 459,651,608.65/x
  3. Step 3: Cross multiply
    1,277,645,595.85x = 1,916,468,393.78 × 459,651,608.65
  4. Step 4: Simplify right side
    1,277,645,595.85x = 880,907,780,125,560,448
  5. Step 5: Solve for x
    x = 880,907,780,125,560,448/1,277,645,595.85
  6. Step 6: Final answer
    x = 689,477,412.98

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Double scale
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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.