Home / 1,086,179,617.90-1,629,269,426.85-268,291,918.90

Finding the Fourth Proportional to 1,086,179,617.90, 1,629,269,426.85 and 268,291,918.90

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Solution

The fourth proportional to 1,086,179,617.90, 1,629,269,426.85 and 268,291,918.90 is: 402,437,878.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,179,617.90 : 1,629,269,426.85 = 268,291,918.90 : x
  2. Step 2: Convert to fraction form
    1,086,179,617.90/1,629,269,426.85 = 268,291,918.90/x
  3. Step 3: Cross multiply
    1,086,179,617.90x = 1,629,269,426.85 × 268,291,918.90
  4. Step 4: Simplify right side
    1,086,179,617.90x = 437,119,820,934,689,664
  5. Step 5: Solve for x
    x = 437,119,820,934,689,664/1,086,179,617.90
  6. Step 6: Final answer
    x = 402,437,878.35

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Double scale
Find fourth proportional to 1,086,179,618.90, 1,629,269,428.35 and 268,291,919.90
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.