Home / 1,185,329,209.20-1,777,993,813.80-1,118,816,415.60

Finding the Fourth Proportional to 1,185,329,209.20, 1,777,993,813.80 and 1,118,816,415.60

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Solution

The fourth proportional to 1,185,329,209.20, 1,777,993,813.80 and 1,118,816,415.60 is: 1,678,224,623.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,329,209.20 : 1,777,993,813.80 = 1,118,816,415.60 : x
  2. Step 2: Convert to fraction form
    1,185,329,209.20/1,777,993,813.80 = 1,118,816,415.60/x
  3. Step 3: Cross multiply
    1,185,329,209.20x = 1,777,993,813.80 × 1,118,816,415.60
  4. Step 4: Simplify right side
    1,185,329,209.20x = 1,989,248,665,714,689,536
  5. Step 5: Solve for x
    x = 1,989,248,665,714,689,536/1,185,329,209.20
  6. Step 6: Final answer
    x = 1,678,224,623.40

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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.