Home / 1,260,784,239.80-1,891,176,359.70-442,896,540.80

Finding the Fourth Proportional to 1,260,784,239.80, 1,891,176,359.70 and 442,896,540.80

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Solution

The fourth proportional to 1,260,784,239.80, 1,891,176,359.70 and 442,896,540.80 is: 664,344,811.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,784,239.80 : 1,891,176,359.70 = 442,896,540.80 : x
  2. Step 2: Convert to fraction form
    1,260,784,239.80/1,891,176,359.70 = 442,896,540.80/x
  3. Step 3: Cross multiply
    1,260,784,239.80x = 1,891,176,359.70 × 442,896,540.80
  4. Step 4: Simplify right side
    1,260,784,239.80x = 837,595,467,753,866,624
  5. Step 5: Solve for x
    x = 837,595,467,753,866,624/1,260,784,239.80
  6. Step 6: Final answer
    x = 664,344,811.20

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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.