Home / 911,875,993.77-1,367,836,384.12-256,822,588.09

Finding the Fourth Proportional to 911,875,993.77, 1,367,836,384.12 and 256,822,588.09

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Solution

The fourth proportional to 911,875,993.77, 1,367,836,384.12 and 256,822,588.09 is: 385,240,189.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,875,993.77 : 1,367,836,384.12 = 256,822,588.09 : x
  2. Step 2: Convert to fraction form
    911,875,993.77/1,367,836,384.12 = 256,822,588.09/x
  3. Step 3: Cross multiply
    911,875,993.77x = 1,367,836,384.12 × 256,822,588.09
  4. Step 4: Simplify right side
    911,875,993.77x = 351,291,280,253,365,760
  5. Step 5: Solve for x
    x = 351,291,280,253,365,760/911,875,993.77
  6. Step 6: Final answer
    x = 385,240,189.08

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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.